58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
import standard;
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import engine;
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import node;
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var tilemap: [int] = null;
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//lifecycle functions
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fn onLoad(node: opaque) {
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//load the atlas into this node
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node.loadNodeTexture("sprites:/tileset.png");
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}
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fn setTilemap(node: opaque, t: [int]) {
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assert t, "provided tilemap is null (in setTilemap)";
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tilemap = t;
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//create a child as a render target
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var child = node.loadChild("scripts:/tilemap/renderer-child.toy");
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child.createNodeTexture(CELL_WIDTH * CELL_COUNT_X * TILE_PIXEL_WIDTH, CELL_HEIGHT * CELL_COUNT_Y * TILE_PIXEL_HEIGHT);
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setRenderTarget(child);
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//draw the tilemap to the child
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for (var j = 0; j < CELL_HEIGHT * CELL_COUNT_Y; j++) {
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for (var i = 0; i < CELL_WIDTH * CELL_COUNT_X; i++) {
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//don't render empty tiles
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if (tilemap[j * CELL_WIDTH * CELL_COUNT_X * 3 + i * 3] < 0) {
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continue;
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}
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//set the rect of the node on the tilesheet - the "tilemap" var is a single blob of data
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node.setNodeRect(
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tilemap[j * CELL_WIDTH * CELL_COUNT_X * 3 + i * 3] * TILE_PIXEL_WIDTH,
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tilemap[j * CELL_WIDTH * CELL_COUNT_X * 3 + i * 3 + 1] * TILE_PIXEL_HEIGHT,
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TILE_PIXEL_WIDTH, TILE_PIXEL_HEIGHT
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);
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//draw to the screen
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node.drawNode(
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(i * TILE_PIXEL_WIDTH),
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(j * TILE_PIXEL_HEIGHT),
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TILE_PIXEL_WIDTH,
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TILE_PIXEL_HEIGHT
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);
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}
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}
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//reset the render target to the screen
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setRenderTarget(null);
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}
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//polyfills
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fn loadChild(parent: opaque, fname: string) {
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//TODO: add this to the API proper
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var child: opaque = loadNode(fname);
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parent.pushNode(child);
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return child;
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} |