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Miloslav Číž 2018-09-11 09:07:24 +02:00
parent 5fc4d1402c
commit 0e7e756243
1 changed files with 10 additions and 1 deletions
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raycastlib.h
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@ -8,6 +8,7 @@
author: Miloslav "drummyfish" Ciz
license: CC0
version: 0.1
- Game field's bottom left corner is at [0,0].
- X axis goes right.
@ -245,6 +246,13 @@ void render(Camera cam, ArrayFunction floorHeightFunc,
ArrayFunction ceilingHeightFunc, ArrayFunction typeFunction,
PixelFunction pixelFunc, RayConstraints constraints);
/**
Renders given camera view, with help of provided functions. This function is
simpler and faster than render(...) and is meant to be rendering scenes
with simple 1-intersection raycasting. The render(...) function can give more
accurate results than this function, so it's to be considered even for simple
scenes.
*/
void renderSimple(Camera cam, ArrayFunction floorHeightFunc,
ArrayFunction typeFunc, PixelFunction pixelFunc, RayConstraints constraints);
@ -1129,7 +1137,8 @@ PixelInfo mapToScreen(Vector2D worldPosition, Unit height, Camera camera)
Unit cos = cosInt(HORIZONTAL_FOV_HALF);
Unit b =
(result.depth * sinInt(HORIZONTAL_FOV_HALF)) / (cos == 0 ? 1 : cos); // sin/cos = tan
(result.depth * sinInt(HORIZONTAL_FOV_HALF)) / (cos == 0 ? 1 : cos);
// sin/cos = tan
result.position.x = (a * middleColumn) / b;
result.position.x = middleColumn - result.position.x;