1316 lines
35 KiB
Vue
1316 lines
35 KiB
Vue
<template>
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<div>
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<div
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id="canvas-area"
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@mouseleave="isMouseOnCanvas = false"
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@mouseenter="isMouseOnCanvas = true"
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>
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<vue-draggable-resizable
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style="z-index: 5"
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ref="canvasdrag"
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:grid="[blockWidth, blockHeight]"
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:w="currentAsciiWidth * blockWidth"
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:h="currentAsciiHeight * blockHeight"
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:draggable="isDefault"
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@resizestop="onCanvasResize"
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@dragstop="onCavasDragStop"
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:x="currentAscii.x"
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:y="currentAscii.y"
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>
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<canvas
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ref="canvas"
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id="canvas"
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class="canvas"
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:width="currentAsciiWidth * blockWidth"
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:height="currentAsciiHeight * blockHeight"
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/>
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<canvas
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ref="canvastools"
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id="canvastools"
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class="canvastools"
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:width="currentAsciiWidth * blockWidth"
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:height="currentAsciiHeight * blockHeight"
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@mousemove="canvasMouseMove"
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@mousedown="canvasMouseDown"
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@mouseup="canvasMouseUp"
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/>
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</vue-draggable-resizable>
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</div>
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</div>
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</template>
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<script>
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import {
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toolbarIcons,
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mircColours99,
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filterNullBlocks,
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blockWidth,
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blockHeight,
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maxBrushSize,
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fillNullBlocks,
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emptyBlock,
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getBlocksWidth,
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checkVisible,
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} from "../ascii";
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export default {
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name: "Editor",
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mounted() {
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this.ctx = this.canvasRef.getContext("2d");
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this.toolCtx = this.$refs.canvastools.getContext("2d");
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this.delayRedrawCanvas();
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},
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created() {
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window.addEventListener("load", () => {
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// Fixes the font on load issue
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this.delayRedrawCanvas();
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});
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if (this.currentAsciiLayerBlocks) {
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this.canvas.width = this.currentAsciiWidth * blockWidth;
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this.canvas.height = this.currentAsciiHeight * blockHeight;
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this.delayRedrawCanvas();
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this.$emit("textediting", this.textEditing);
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}
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},
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data: () => ({
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ctx: null,
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toolCtx: null,
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canvas: {
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width: 512,
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height: 512,
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},
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x: 0, // Ascii X and Y
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y: 0, // Ascii X and Y
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top: false,
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redraw: true, // Used to limit canvas redraw
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canTool: false,
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textEditing: {
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startX: null,
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startY: null,
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},
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selecting: {
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startX: null,
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startY: null,
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endX: null,
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endY: null,
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canSelect: false,
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},
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isMouseOnCanvas: false,
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selectedBlocks: [],
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}),
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props: ["updateCanvas"],
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computed: {
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canvasRef() {
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return this.$refs.canvas;
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},
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blockWidth() {
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return blockWidth * this.blockSizeMultiplier;
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},
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blockHeight() {
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return blockHeight * this.blockSizeMultiplier;
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},
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blockSizeMultiplier() {
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return this.$store.getters.blockSizeMultiplier;
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},
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currentAscii() {
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return this.$store.getters.currentAscii;
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},
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currentAsciiLayers() {
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return this.$store.getters.currentAsciiLayers;
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},
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currentSelectedLayer() {
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return this.currentAsciiLayers[this.currentAscii.selectedLayer];
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},
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currentAsciiLayerBlocks() {
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return this.currentSelectedLayer.data;
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},
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currentTool() {
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return toolbarIcons[this.$store.getters.currentTool];
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},
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canFg() {
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return this.$store.getters.isTargettingFg;
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},
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canBg() {
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return this.$store.getters.isTargettingBg;
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},
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canText() {
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return this.$store.getters.isTargettingChar;
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},
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currentFg() {
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return this.$store.getters.currentFg;
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},
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currentBg() {
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return this.$store.getters.currentBg;
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},
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currentChar() {
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return this.$store.getters.currentChar;
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},
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isTextEditing() {
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return this.currentTool.name === "text";
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},
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isTextEditingValues() {
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return (
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this.textEditing.startX !== null && this.textEditing.startY !== null
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);
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},
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isSelecting() {
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return this.currentTool.name === "select";
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},
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isDefault() {
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return this.currentTool.name === "default" || false;
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},
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isBrushing() {
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return this.currentTool.name === "brush";
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},
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isSelected() {
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return (
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this.selecting.startX !== null &&
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this.selecting.startY !== null &&
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this.selecting.endX !== null &&
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this.selecting.endY !== null
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);
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},
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brushBlocks() {
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return this.$store.getters.brushBlocks;
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},
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canvasX() {
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return this.x * blockWidth;
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},
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canvasY() {
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return this.y * blockHeight;
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},
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toolbarState() {
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return this.$store.getters.toolbarState;
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},
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mirrorX() {
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return this.toolbarState.mirrorX;
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},
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mirrorY() {
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return this.toolbarState.mirrorY;
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},
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debugPanelState() {
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return this.$store.getters.debugPanel;
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},
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selectBlocks() {
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return this.$store.getters.selectBlocks;
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},
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options() {
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return this.$store.getters.options;
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},
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haveSelectBlocks() {
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return !!this.selectBlocks.length;
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},
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mircColours() {
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return mircColours99;
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},
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brushLibraryState() {
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return this.$store.getters.brushLibraryState;
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},
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gridView() {
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return this.toolbarState.gridView;
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},
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asciiBlockAtXy() {
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return this.currentAsciiLayerBlocks[this.y] &&
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this.currentAsciiLayerBlocks[this.y][this.x]
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? this.currentAsciiLayerBlocks[this.y][this.x]
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: false;
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},
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maxBrushSize() {
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return maxBrushSize;
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},
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currentAsciiWidth() {
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return this.currentSelectedLayer.width;
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},
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currentAsciiHeight() {
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return this.currentSelectedLayer.height;
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},
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},
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watch: {
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currentAscii(val, old) {
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if (val !== old) {
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this.canvas.width = this.currentAsciiWidth * blockWidth;
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this.canvas.height = this.currentAsciiHeight * blockHeight;
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this.delayRedrawCanvas();
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document.title = `asciibird - ${this.currentAscii.title}`;
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}
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},
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currentAsciiLayerBlocks() {
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this.delayRedrawCanvas();
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},
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currentAsciiLayers() {
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this.delayRedrawCanvas();
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},
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currentSelectedLayer(val, old) {
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this.delayRedrawCanvas();
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if (old.visible) {
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this.warnInvisibleLayer();
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}
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},
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currentTool() {
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this.warnInvisibleLayer();
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switch (this.currentTool.name) {
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case "default":
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// Reset default values for tools
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this.textEditing = {
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startX: null,
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startY: null,
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};
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this.resetSelect();
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break;
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}
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},
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isMouseOnCanvas() {
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if (!this.isSelecting) {
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this.clearToolCanvas();
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this.canTool = false;
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}
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},
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gridView(val, old) {
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if (val !== old) {
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this.delayRedrawCanvas();
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}
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},
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brushBlocks() {
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this.clearToolCanvas();
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// This was supposed to update the brush preview real time
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if (this.isMouseOnCanvas && this.isBrushing) {
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this.drawBrush();
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}
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},
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blockSizeMultiplier() {
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this.delayRedrawCanvas();
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},
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// Save text to store when finished
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isTextEditing(val, old) {
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if (val !== old && val === false) {
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this.$store.commit("updateAsciiBlocks", this.currentAsciiLayerBlocks);
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}
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},
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textEditing(val, old) {
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this.$emit("textediting", val);
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},
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updateCanvas(val, old) {
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if (val !== old) {
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// This comes from KeyboardShortcuts.vue
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this.clearToolCanvas();
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this.drawTextIndicator();
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this.drawIndicator();
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this.delayRedrawCanvas();
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}
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},
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},
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methods: {
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warnInvisibleLayer() {
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if (!this.currentSelectedLayer.visible) {
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this.$toasted.show("You are trying to edit an invisible layer!!", {
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type: "error",
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icon: "fa-check-cross",
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singleton: true,
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});
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return;
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}
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},
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checkVisible(top) {
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return checkVisible(top, top - this.blockHeight);
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},
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undo() {
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this.$store.commit("undoBlocks");
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this.delayRedrawCanvas();
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},
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redo() {
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this.$store.commit("redoBlocks");
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this.delayRedrawCanvas();
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},
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resetSelect() {
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this.selecting = {
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startX: null,
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startY: null,
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endX: null,
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endY: null,
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canSelect: false,
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};
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},
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redrawSelect() {
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if (this.currentAsciiLayerBlocks.length) {
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this.clearToolCanvas();
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this.toolCtx.fillStyle = this.mircColours[0];
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this.toolCtx.fillRect(
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this.selecting.startX,
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this.selecting.startY,
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this.selecting.endX - this.selecting.startX,
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this.selecting.endY - this.selecting.startY
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);
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this.toolCtx.setLineDash([6]);
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this.toolCtx.strokeRect(
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this.selecting.startX,
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this.selecting.startY,
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this.selecting.endX - this.selecting.startX,
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this.selecting.endY - this.selecting.startY
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);
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}
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},
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redrawCanvas() {
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if (this.currentAsciiLayers.length) {
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this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
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// Position of the meta array
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let x = 0;
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let y = 0;
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let i = 0;
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// Draws the actual rectangle
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let canvasX = 0;
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let canvasY = 0;
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let curBlock = {};
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// hack font for ascii shout outs 2 beenz
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this.ctx.font = "13px Hack";
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for (y = 0; y < this.currentAsciiHeight + 1; y++) {
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canvasY = blockHeight * y;
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// Experimental code to not rows blocks off screen
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if (this.top !== false && !this.checkVisible(this.top + canvasY)) {
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continue;
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}
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for (x = 0; x < this.currentAsciiWidth + 1; x++) {
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// Loop layers
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for (i = this.currentAsciiLayers.length - 1; i >= 0; i--) {
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// for (i = 0; i >= this.currentAsciiLayers.length - 1; i++) {
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// If this layer is invisble, skip it
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if (this.currentAsciiLayers[i].visible === true) {
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// If this block on this layer has no data, skip to next row
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if (
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this.currentAsciiLayers[i] &&
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this.currentAsciiLayers[i].data &&
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this.currentAsciiLayers[i].data[y] &&
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this.currentAsciiLayers[i].data[y][x] &&
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i > 0 &&
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JSON.stringify(this.currentAsciiLayers[i].data[y][x]) ===
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JSON.stringify(emptyBlock)
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) {
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continue;
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} else if (
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// Otherwise if we are on the very first layer we need to render it
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this.currentAsciiLayers[i] &&
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this.currentAsciiLayers[i].data &&
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this.currentAsciiLayers[i].data[y] &&
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this.currentAsciiLayers[i].data[y][x]
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) {
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curBlock = { ...this.currentAsciiLayers[i].data[y][x] };
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// break;
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}
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canvasX = blockWidth * x;
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if (this.gridView) {
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this.ctx.setLineDash([1]);
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this.ctx.strokeStyle = "rgba(0, 0, 0, 1)";
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this.ctx.strokeRect(
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canvasX,
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canvasY,
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blockWidth,
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blockHeight
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);
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}
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// Background block
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if (curBlock.bg !== null) {
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this.ctx.fillStyle = this.mircColours[curBlock.bg];
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this.ctx.fillRect(canvasX, canvasY, blockWidth, blockHeight);
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}
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if (curBlock.char) {
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if (curBlock.fg !== null) {
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this.ctx.fillStyle = this.mircColours[curBlock.fg];
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} else {
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this.ctx.fillStyle = "#000000";
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}
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this.ctx.fillText(
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curBlock.char,
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canvasX,
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canvasY + blockHeight - 3
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);
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}
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break;
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}
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}
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}
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}
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}
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},
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onCanvasResize(left, top, width, height) {
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const canvasBlockHeight = Math.floor(height / blockHeight);
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const canvasBlockWidth = Math.floor(width / blockWidth);
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let layers = fillNullBlocks(canvasBlockHeight, canvasBlockWidth);
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this.top = top;
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this.canvas.width = width;
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this.canvas.height = height;
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this.$store.commit("changeAsciiWidthHeight", {
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width: canvasBlockWidth,
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height: canvasBlockHeight,
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layers: [...layers],
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});
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this.$refs.canvasdrag.width = width;
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this.$refs.canvasdrag.width = height;
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this.delayRedrawCanvas();
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},
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onCavasDragStop(x, y) {
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// Update left and top in panel
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this.top = y;
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this.$store.commit("changeAsciiCanvasState", { x, y });
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this.delayRedrawCanvas();
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},
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onCanvasDrag(x, y) {
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this.top = y;
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this.delayRedrawCanvas();
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},
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// Mouse Up, Down and Move
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canvasMouseUp() {
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if (this.isDefault) return;
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switch (this.currentTool.name) {
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case "brush":
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this.canTool = false;
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this.$store.commit("updateAsciiBlocks", this.currentAsciiLayerBlocks);
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break;
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case "eraser":
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this.canTool = false;
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this.$store.commit("updateAsciiBlocks", this.currentAsciiLayerBlocks);
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break;
|
|
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case "fill-eraser":
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case "fill":
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this.canTool = false;
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break;
|
|
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case "select":
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this.selecting.canSelect = false;
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this.processSelect();
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break;
|
|
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|
case "text":
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this.textEditing.startX = this.x;
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this.textEditing.startY = this.y;
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break;
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}
|
|
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this.delayRedrawCanvas();
|
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},
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canvasMouseDown() {
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if (this.isDefault) return;
|
|
|
|
if (this.asciiBlockAtXy && this.currentTool) {
|
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const targetBlock = this.asciiBlockAtXy;
|
|
|
|
switch (this.currentTool.name) {
|
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case "select":
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this.selecting.startX = this.canvasX;
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|
this.selecting.startY = this.canvasY;
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this.selecting.canSelect = true;
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this.clearToolCanvas();
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|
break;
|
|
|
|
case "fill":
|
|
this.fill();
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|
this.$store.commit(
|
|
"updateAsciiBlocks",
|
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this.currentAsciiLayerBlocks
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|
);
|
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this.canTool = false;
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|
break;
|
|
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|
case "fill-eraser":
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this.fill(true);
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this.$store.commit(
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"updateAsciiBlocks",
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this.currentAsciiLayerBlocks
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);
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this.canTool = false;
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break;
|
|
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case "brush":
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this.canTool = true;
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this.drawBrush();
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break;
|
|
|
|
case "eraser":
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this.canTool = true;
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this.eraser();
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break;
|
|
|
|
case "dropper":
|
|
if (this.canFg) {
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this.$store.commit("changeColourFg", targetBlock.fg);
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|
}
|
|
|
|
if (this.canBg) {
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this.$store.commit("changeColourBg", targetBlock.bg);
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|
}
|
|
|
|
if (this.canText) {
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this.$store.commit("changeChar", targetBlock.char);
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}
|
|
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this.$store.commit("changeTool", 0);
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break;
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}
|
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}
|
|
},
|
|
canvasMouseMove(e) {
|
|
if (this.isDefault) return;
|
|
|
|
let lastX = this.x;
|
|
let lastY = this.y;
|
|
|
|
if (e.offsetX >= 0) {
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this.x = e.offsetX;
|
|
}
|
|
|
|
if (e.offsetY >= 0) {
|
|
this.y = e.offsetY;
|
|
}
|
|
|
|
this.x = Math.floor(this.x / blockWidth);
|
|
this.y = Math.floor(this.y / blockHeight);
|
|
|
|
if (this.x === lastX && this.y === lastY) {
|
|
return;
|
|
}
|
|
this.$emit("coordsupdate", { x: this.x, y: this.y });
|
|
|
|
if (this.asciiBlockAtXy) {
|
|
switch (this.currentTool.name) {
|
|
case "brush":
|
|
if (this.isMouseOnCanvas) {
|
|
this.clearToolCanvas();
|
|
this.drawBrush();
|
|
}
|
|
break;
|
|
|
|
case "eraser":
|
|
this.clearToolCanvas();
|
|
|
|
if (this.isMouseOnCanvas) {
|
|
this.drawBrush(true);
|
|
}
|
|
this.eraser();
|
|
break;
|
|
|
|
case "select":
|
|
if (this.selecting.canSelect) {
|
|
this.selecting.endX = this.canvasX;
|
|
this.selecting.endY = this.canvasY;
|
|
|
|
this.redrawSelect();
|
|
}
|
|
|
|
if (!this.isSelected) {
|
|
this.redrawSelect();
|
|
}
|
|
|
|
break;
|
|
|
|
case "text":
|
|
this.clearToolCanvas();
|
|
this.drawIndicator();
|
|
|
|
if (this.isTextEditingValues) {
|
|
this.drawTextIndicator();
|
|
}
|
|
break;
|
|
|
|
case "dropper":
|
|
this.clearToolCanvas();
|
|
this.drawIndicator();
|
|
break;
|
|
|
|
case "fill":
|
|
case "fill-eraser":
|
|
this.clearToolCanvas();
|
|
this.drawIndicator();
|
|
break;
|
|
}
|
|
}
|
|
|
|
this.delayRedrawCanvas();
|
|
},
|
|
clearToolCanvas() {
|
|
if (this.toolCtx) {
|
|
this.toolCtx.clearRect(0, 0, this.canvas.width, this.canvas.height);
|
|
}
|
|
},
|
|
delayRedrawCanvas() {
|
|
if (this.redraw) {
|
|
this.redraw = false;
|
|
requestAnimationFrame(() => {
|
|
this.redraw = true;
|
|
this.redrawCanvas();
|
|
});
|
|
}
|
|
},
|
|
getBlocksWidth(blocks) {
|
|
return getBlocksWidth(blocks);
|
|
},
|
|
filterNullBlocks(blocks) {
|
|
return filterNullBlocks(blocks);
|
|
},
|
|
//
|
|
// TOOLS
|
|
//
|
|
processSelect() {
|
|
//
|
|
let x = 0;
|
|
let y = 0;
|
|
|
|
let curBlock = {};
|
|
this.selectedBlocks = [];
|
|
|
|
// If we select from the bottom right towards top left
|
|
// we need to swap the values
|
|
if (this.selecting.endY < this.selecting.startY) {
|
|
let end = this.selecting.endY;
|
|
let start = this.selecting.startY;
|
|
|
|
this.selecting.startY = end;
|
|
this.selecting.endY = start;
|
|
}
|
|
|
|
if (this.selecting.endX < this.selecting.startX) {
|
|
let end = this.selecting.endX;
|
|
let start = this.selecting.startX;
|
|
|
|
this.selecting.startX = end;
|
|
this.selecting.endX = start;
|
|
}
|
|
|
|
for (y = 0; y < this.currentAsciiHeight; y++) {
|
|
if (
|
|
y > Math.floor(this.selecting.startY / blockHeight) - 1 &&
|
|
y < Math.floor(this.selecting.endY / blockHeight)
|
|
) {
|
|
if (!this.selectedBlocks[y]) {
|
|
this.selectedBlocks[y] = [];
|
|
}
|
|
|
|
for (x = 0; x < this.currentAsciiWidth; x++) {
|
|
if (
|
|
x > Math.ceil(this.selecting.startX / blockWidth) - 1 &&
|
|
x <= Math.ceil(this.selecting.endX / blockWidth) - 1
|
|
) {
|
|
if (
|
|
this.currentAsciiLayerBlocks[y] &&
|
|
this.currentAsciiLayerBlocks[y][x]
|
|
) {
|
|
curBlock = { ...this.currentAsciiLayerBlocks[y][x] };
|
|
|
|
if (!this.selectedBlocks[y][x]) {
|
|
this.selectedBlocks[y][x] = { ...curBlock };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
this.$emit("selectedblocks", this.selectedBlocks);
|
|
},
|
|
drawRectangleBlock(x, y) {
|
|
let indicatorColour = this.asciiBlockAtXy.bg === 0 ? 1 : 0;
|
|
|
|
if (this.asciiBlockAtXy.bg === 8) {
|
|
indicatorColour = 1;
|
|
}
|
|
|
|
this.toolCtx.fillStyle = this.mircColours[indicatorColour];
|
|
|
|
this.toolCtx.fillRect(
|
|
x * blockWidth,
|
|
y * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
|
|
this.toolCtx.setLineDash([1, 2]);
|
|
this.toolCtx.strokeRect(
|
|
x * blockWidth,
|
|
y * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
},
|
|
drawIndicator() {
|
|
this.drawRectangleBlock(this.x, this.y);
|
|
|
|
// We can draw icons on the tool canvas with the font awesome CSS
|
|
// it needs more work though to not conflict with the brush preview chars
|
|
// if (this.isTextEditing) {
|
|
// this.toolCtx.font = '600 22px "Font Awesome 5 Free"';
|
|
// this.toolCtx.fillText(
|
|
// "\uf031",
|
|
// this.x * blockWidth,
|
|
// this.y * blockHeight + blockHeight * 2
|
|
// );
|
|
// // this.toolCtx.font = "13px Hack";
|
|
// }
|
|
|
|
if (this.isTextEditing) {
|
|
if (this.mirrorX) {
|
|
this.drawRectangleBlock(this.currentAsciiWidth - this.x, this.y);
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
this.drawRectangleBlock(this.x, this.currentAsciiHeight - this.y);
|
|
}
|
|
|
|
if (this.mirrorY && this.mirrorX) {
|
|
this.drawRectangleBlock(
|
|
this.currentAsciiWidth - this.x,
|
|
this.currentAsciiHeight - this.y
|
|
);
|
|
}
|
|
}
|
|
},
|
|
drawTextIndicator() {
|
|
this.drawRectangleBlock(this.textEditing.startX, this.textEditing.startY);
|
|
|
|
if (this.mirrorX) {
|
|
this.drawRectangleBlock(
|
|
this.currentAsciiWidth - this.textEditing.startX,
|
|
this.textEditing.startY
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
this.drawRectangleBlock(
|
|
this.textEditing.startX,
|
|
this.currentAsciiHeight - this.textEditing.startY
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY && this.mirrorX) {
|
|
this.drawRectangleBlock(
|
|
this.currentAsciiWidth - this.textEditing.startX,
|
|
this.currentAsciiHeight - this.textEditing.startY
|
|
);
|
|
}
|
|
},
|
|
//
|
|
// Functions related to drawBrush function bellow
|
|
//
|
|
drawBrushBlocks(brushX, brushY, brushBlock, target = null, plain = false) {
|
|
const arrayY = brushY / blockHeight;
|
|
const arrayX = brushX / blockWidth;
|
|
const asciiWidth = this.currentAsciiWidth;
|
|
const asciiHeight = this.currentAsciiHeight;
|
|
let targetBlock = this.currentAsciiLayerBlocks[arrayY][arrayX];
|
|
|
|
if (plain) {
|
|
// Used for eraser preview and other non brushs
|
|
let indicatorColour = targetBlock.bg === 0 ? 1 : 0;
|
|
|
|
if (targetBlock.bg === 8) {
|
|
indicatorColour = 1;
|
|
}
|
|
|
|
this.toolCtx.fillStyle = this.mircColours[indicatorColour];
|
|
|
|
this.toolCtx.fillRect(brushX, brushY, blockWidth, blockHeight);
|
|
|
|
if (this.mirrorX) {
|
|
this.toolCtx.fillRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
brushY,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
this.toolCtx.fillRect(
|
|
brushX,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY && this.mirrorX) {
|
|
this.toolCtx.fillRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
switch (target) {
|
|
case "bg":
|
|
this.toolCtx.fillStyle =
|
|
brushBlock.bg !== null
|
|
? this.mircColours[brushBlock.bg]
|
|
: "rgba(255,255,255,0.4)";
|
|
|
|
break;
|
|
case "fg":
|
|
this.toolCtx.fillStyle =
|
|
brushBlock.fg !== null
|
|
? this.mircColours[brushBlock.fg]
|
|
: "#000000";
|
|
|
|
break;
|
|
|
|
// If no target is specified we assume we are rendering the text
|
|
default:
|
|
if (this.canText && brushBlock.char !== null) {
|
|
this.toolCtx.font = "Hack 13px";
|
|
|
|
this.toolCtx.fillStyle = this.canFg
|
|
? this.mircColours[brushBlock.fg]
|
|
: "#000000";
|
|
|
|
this.toolCtx.fillText(
|
|
brushBlock.char,
|
|
brushX,
|
|
brushY + blockHeight - 3
|
|
);
|
|
|
|
if (this.mirrorX) {
|
|
this.toolCtx.fillText(
|
|
brushBlock.char,
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
brushY + blockHeight - 4
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
this.toolCtx.fillText(
|
|
brushBlock.char,
|
|
brushX,
|
|
(asciiHeight - arrayY) * blockHeight + 10
|
|
);
|
|
}
|
|
if (this.mirrorY && this.mirrorX) {
|
|
this.toolCtx.fillText(
|
|
brushBlock.char,
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
(asciiHeight - arrayY) * blockHeight + 10
|
|
);
|
|
}
|
|
}
|
|
|
|
// Apply text to ascii blocks
|
|
if (this.canText && this.canTool && brushBlock.char !== null) {
|
|
targetBlock.char = brushBlock.char;
|
|
|
|
if (
|
|
this.mirrorX &&
|
|
this.currentAsciiLayerBlocks[arrayY] &&
|
|
this.currentAsciiLayerBlocks[arrayY][asciiWidth - arrayX]
|
|
) {
|
|
this.currentAsciiLayerBlocks[arrayY][asciiWidth - arrayX].char =
|
|
brushBlock.char;
|
|
}
|
|
|
|
if (
|
|
this.mirrorY &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY] &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][arrayX]
|
|
) {
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][arrayX].char =
|
|
brushBlock.char;
|
|
}
|
|
|
|
if (
|
|
this.mirrorY &&
|
|
this.mirrorX &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY] &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][
|
|
asciiWidth - arrayX
|
|
]
|
|
) {
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][
|
|
asciiWidth - arrayX
|
|
].char = brushBlock.char;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (this.canBg && target == "bg") {
|
|
this.toolCtx.setLineDash([1, 2]);
|
|
this.toolCtx.strokeRect(brushX, brushY, blockWidth, blockHeight);
|
|
this.toolCtx.fillRect(brushX, brushY, blockWidth, blockHeight);
|
|
|
|
if (this.mirrorX) {
|
|
this.toolCtx.fillRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
brushY,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
|
|
this.toolCtx.setLineDash([1, 2]);
|
|
this.toolCtx.strokeRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
brushY,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
this.toolCtx.fillRect(
|
|
brushX,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
|
|
this.toolCtx.setLineDash([1, 2]);
|
|
this.toolCtx.strokeRect(
|
|
brushX,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
|
|
if (this.mirrorY && this.mirrorX) {
|
|
this.toolCtx.fillRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
|
|
this.toolCtx.setLineDash([1, 2]);
|
|
this.toolCtx.strokeRect(
|
|
(asciiWidth - arrayX) * blockWidth,
|
|
(asciiHeight - arrayY) * blockHeight,
|
|
blockWidth,
|
|
blockHeight
|
|
);
|
|
}
|
|
}
|
|
|
|
// Apply the actual brush block to the ascii block
|
|
if (this.canTool && brushBlock[target] !== null) {
|
|
targetBlock[target] = brushBlock[target];
|
|
|
|
if (
|
|
this.mirrorX &&
|
|
this.currentAsciiLayerBlocks[arrayY] &&
|
|
this.currentAsciiLayerBlocks[arrayY][asciiWidth - arrayX]
|
|
) {
|
|
this.currentAsciiLayerBlocks[arrayY][asciiWidth - arrayX][target] =
|
|
brushBlock[target];
|
|
}
|
|
|
|
if (
|
|
this.mirrorY &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY] &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][arrayX]
|
|
) {
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][arrayX][target] =
|
|
brushBlock[target];
|
|
}
|
|
|
|
if (
|
|
this.mirrorY &&
|
|
this.mirrorX &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY] &&
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][
|
|
asciiWidth - arrayX
|
|
]
|
|
) {
|
|
this.currentAsciiLayerBlocks[asciiHeight - arrayY][
|
|
asciiWidth - arrayX
|
|
][target] = brushBlock[target];
|
|
}
|
|
}
|
|
},
|
|
//
|
|
// drawBrush
|
|
// - draws brush
|
|
// - draws preview for all toolbar things that need it
|
|
// - also works with the copy / paste
|
|
drawBrush(plain = false) {
|
|
this.clearToolCanvas();
|
|
let brushDiffX = 0;
|
|
let xLength = 0;
|
|
|
|
// If the first row isn't selected then we cannot get the width
|
|
// with the 0 index
|
|
for (let i = 0; i <= this.brushBlocks.length; i++) {
|
|
if (this.brushBlocks[i]) {
|
|
brushDiffX = Math.floor(this.brushBlocks[i].length / 2) * blockWidth;
|
|
xLength = this.brushBlocks[i].length;
|
|
break;
|
|
}
|
|
}
|
|
|
|
const brushDiffY = Math.floor(this.brushBlocks.length / 2) * blockHeight;
|
|
|
|
for (let y = 0; y < this.brushBlocks.length; y++) {
|
|
if (!this.brushBlocks[y]) {
|
|
continue;
|
|
}
|
|
|
|
for (let x = 0; x < xLength; x++) {
|
|
if (!this.brushBlocks[y][x]) {
|
|
continue;
|
|
}
|
|
|
|
const brushBlock = this.brushBlocks[y][x];
|
|
|
|
const brushX = this.x * blockWidth + x * blockWidth - brushDiffX;
|
|
const brushY = this.y * blockHeight + y * blockHeight - brushDiffY;
|
|
|
|
const arrayY = brushY / blockHeight;
|
|
const arrayX = brushX / blockWidth;
|
|
|
|
if (this.currentAsciiLayerBlocks[arrayY][arrayX]) {
|
|
if (!plain) {
|
|
if (this.canBg) {
|
|
this.drawBrushBlocks(brushX, brushY, brushBlock, "bg");
|
|
}
|
|
|
|
if (this.canFg) {
|
|
this.drawBrushBlocks(brushX, brushY, brushBlock, "fg");
|
|
}
|
|
|
|
this.drawBrushBlocks(brushX, brushY, brushBlock, null);
|
|
} else {
|
|
this.drawBrushBlocks(brushX, brushY, brushBlock, null, true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
eraser() {
|
|
if (this.canTool) {
|
|
let targetBlock = this.asciiBlockAtXy;
|
|
|
|
const brushDiffX =
|
|
Math.floor(this.brushBlocks[0].length / 2) * blockWidth;
|
|
const brushDiffY =
|
|
Math.floor(this.brushBlocks.length / 2) * blockHeight;
|
|
|
|
for (let y = 0; y < this.brushBlocks.length; y++) {
|
|
for (let x = 0; x < this.brushBlocks[0].length; x++) {
|
|
const brushX = this.x * blockWidth + x * blockWidth - brushDiffX;
|
|
const brushY = this.y * blockHeight + y * blockHeight - brushDiffY;
|
|
|
|
const arrayY = brushY / blockHeight;
|
|
const arrayX = brushX / blockWidth;
|
|
|
|
if (this.asciiBlockAtXy) {
|
|
targetBlock = this.currentAsciiLayerBlocks[arrayY][arrayX];
|
|
|
|
if (this.canFg) {
|
|
targetBlock.fg = null;
|
|
}
|
|
|
|
if (this.canBg) {
|
|
targetBlock.bg = null;
|
|
}
|
|
|
|
if (this.canText) {
|
|
targetBlock.char = null;
|
|
}
|
|
}
|
|
|
|
if (this.mirrorX) {
|
|
if (
|
|
this.currentAsciiLayerBlocks[arrayY] &&
|
|
this.currentAsciiLayerBlocks[arrayY][
|
|
this.currentAsciiWidth - arrayX
|
|
]
|
|
) {
|
|
targetBlock =
|
|
this.currentAsciiLayerBlocks[arrayY][
|
|
this.currentAsciiWidth - arrayX
|
|
];
|
|
|
|
if (this.canFg) {
|
|
targetBlock.fg = null;
|
|
}
|
|
|
|
if (this.canBg) {
|
|
targetBlock.bg = null;
|
|
}
|
|
|
|
if (this.canText) {
|
|
targetBlock.char = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this.mirrorY) {
|
|
if (
|
|
this.currentAsciiLayerBlocks[
|
|
this.currentAsciiHeight - arrayY
|
|
] &&
|
|
this.currentAsciiLayerBlocks[this.currentAsciiHeight - arrayY][
|
|
arrayX
|
|
]
|
|
) {
|
|
targetBlock =
|
|
this.currentAsciiLayerBlocks[
|
|
this.currentAsciiHeight - arrayY
|
|
][arrayX];
|
|
|
|
if (this.canFg) {
|
|
targetBlock.fg = null;
|
|
}
|
|
|
|
if (this.canBg) {
|
|
targetBlock.bg = null;
|
|
}
|
|
|
|
if (this.canText) {
|
|
targetBlock.char = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this.mirrorY && this.mirrorX) {
|
|
if (
|
|
this.currentAsciiLayerBlocks[
|
|
this.currentAsciiHeight - arrayY
|
|
] &&
|
|
this.currentAsciiLayerBlocks[this.currentAsciiHeight - arrayY][
|
|
this.currentAsciiWidth - arrayX
|
|
]
|
|
) {
|
|
targetBlock =
|
|
this.currentAsciiLayerBlocks[
|
|
this.currentAsciiHeight - arrayY
|
|
][this.currentAsciiWidth - arrayX];
|
|
|
|
if (this.canFg) {
|
|
targetBlock.fg = null;
|
|
}
|
|
|
|
if (this.canBg) {
|
|
targetBlock.bg = null;
|
|
}
|
|
|
|
if (this.canText) {
|
|
targetBlock.char = null;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
// Fill tool
|
|
fill(eraser = false) {
|
|
const newColor = this.currentBg;
|
|
const current = this.asciiBlockAtXy.bg;
|
|
|
|
// If the newColor is same as the existing
|
|
// Then return the original image.
|
|
if (current === newColor && !eraser) {
|
|
return;
|
|
}
|
|
|
|
this.fillTool(
|
|
this.currentAsciiLayerBlocks,
|
|
this.y,
|
|
this.x,
|
|
current,
|
|
eraser
|
|
);
|
|
},
|
|
fillTool(fillBlocks, y, x, current, eraser) {
|
|
// If row is less than 0
|
|
if (x < 0) {
|
|
return;
|
|
}
|
|
|
|
// If column is less than 0
|
|
if (y < 0) {
|
|
return;
|
|
}
|
|
|
|
// If row is greater than image length
|
|
if (x >= this.currentAsciiWidth) {
|
|
return;
|
|
}
|
|
|
|
// If column is greater than image length
|
|
if (y >= this.currentAsciiHeight) {
|
|
return;
|
|
}
|
|
|
|
if (!fillBlocks[y] && !fillBlocks[y][x]) {
|
|
return;
|
|
}
|
|
|
|
// If the current pixel is not which needs to be replaced
|
|
if (fillBlocks[y][x].bg !== current) {
|
|
return;
|
|
}
|
|
|
|
// We can eraser or fill
|
|
if (this.canBg) {
|
|
fillBlocks[y][x].bg = eraser ? null : this.currentBg;
|
|
}
|
|
|
|
if (this.canFg) {
|
|
fillBlocks[y][x].fg = eraser ? null : this.currentFg;
|
|
}
|
|
|
|
if (this.canText) {
|
|
fillBlocks[y][x].char = eraser ? null : this.currentChar;
|
|
}
|
|
|
|
// Fill in all four directions
|
|
// Fill Prev row
|
|
this.fillTool(fillBlocks, y, x - 1, current, eraser);
|
|
|
|
// Fill Next row
|
|
this.fillTool(fillBlocks, y, x + 1, current, eraser);
|
|
|
|
// Fill Prev col
|
|
this.fillTool(fillBlocks, y - 1, x, current, eraser);
|
|
|
|
// Fill next col
|
|
this.fillTool(fillBlocks, y + 1, x, current, eraser);
|
|
},
|
|
},
|
|
};
|
|
</script>
|