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raycastlib.h
11
raycastlib.h
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@ -8,6 +8,7 @@
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author: Miloslav "drummyfish" Ciz
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license: CC0
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version: 0.1
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- Game field's bottom left corner is at [0,0].
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- X axis goes right.
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@ -245,6 +246,13 @@ void render(Camera cam, ArrayFunction floorHeightFunc,
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ArrayFunction ceilingHeightFunc, ArrayFunction typeFunction,
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PixelFunction pixelFunc, RayConstraints constraints);
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/**
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Renders given camera view, with help of provided functions. This function is
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simpler and faster than render(...) and is meant to be rendering scenes
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with simple 1-intersection raycasting. The render(...) function can give more
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accurate results than this function, so it's to be considered even for simple
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scenes.
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*/
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void renderSimple(Camera cam, ArrayFunction floorHeightFunc,
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ArrayFunction typeFunc, PixelFunction pixelFunc, RayConstraints constraints);
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@ -1129,7 +1137,8 @@ PixelInfo mapToScreen(Vector2D worldPosition, Unit height, Camera camera)
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Unit cos = cosInt(HORIZONTAL_FOV_HALF);
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Unit b =
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(result.depth * sinInt(HORIZONTAL_FOV_HALF)) / (cos == 0 ? 1 : cos); // sin/cos = tan
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(result.depth * sinInt(HORIZONTAL_FOV_HALF)) / (cos == 0 ? 1 : cos);
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// sin/cos = tan
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result.position.x = (a * middleColumn) / b;
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result.position.x = middleColumn - result.position.x;
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