diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/raylib.h | 1 | ||||
| -rw-r--r-- | src/textures.c | 42 |
2 files changed, 43 insertions, 0 deletions
diff --git a/src/raylib.h b/src/raylib.h index d02ec4b3..fcf820a9 100644 --- a/src/raylib.h +++ b/src/raylib.h @@ -1260,6 +1260,7 @@ RLAPI void DrawTextureQuad(Texture2D texture, Vector2 tiling, Vector2 offset, Re RLAPI void DrawTextureTiled(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, float scale, Color tint); // Draw part of a texture (defined by a rectangle) with rotation and scale tiled into dest. RLAPI void DrawTexturePro(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draw a part of a texture defined by a rectangle with 'pro' parameters RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draws a texture (or part of it) that stretches or shrinks nicely +RLAPI void DrawTexturePoly(Texture t, float x, float y, Vector2 *points, Vector2 *tPnts, int numPoints, Color colour); // Draw a textured polygon // Color/pixel related functions RLAPI Color Fade(Color color, float alpha); // Returns color with alpha applied, alpha goes from 0.0f to 1.0f diff --git a/src/textures.c b/src/textures.c index 875f736c..61e6f30b 100644 --- a/src/textures.c +++ b/src/textures.c @@ -3510,6 +3510,48 @@ void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle dest, } } +// t texture to use +// x,y position to draw the poly (centre) +// points points of the poly (relative to 0,0) +// tPnts uv coordinates +// numPoints number of points in the poly +// colour the tint of the poly +// +// NB centre (0,0) must have straight line path to all points +// without crossing perimeter, points must be in anticlockwise +// order +void DrawTexturePoly(Texture t, float x, float y, + Vector2 *points, Vector2 *tPnts, + int numPoints, Color colour) +{ + rlEnableTexture(t.id); + + // for some reason texturing doesn't work on trianglesso make a + // degenerate QUAD, DrawTriangleFan does this too why ? + rlCheckRenderBatchLimit((numPoints-1)*4); + rlBegin(RL_QUADS); + rlColor4ub(colour.r, colour.g, colour.b, colour.a); + + for (int i = 0; i < numPoints-1; i++) + { + rlTexCoord2f(0.5, 0.5); + rlVertex2f(x, y); + + rlTexCoord2f(tPnts[i].x, tPnts[i].y); + rlVertex2f(points[i].x + x, points[i].y + y); + + rlTexCoord2f(tPnts[i + 1].x, tPnts[i + 1].y); + rlVertex2f(points[i + 1].x + x, points[i + 1].y + y); + + rlTexCoord2f(tPnts[i + 1].x, tPnts[i + 1].y); + rlVertex2f(points[i + 1].x + x, points[i + 1].y + y); + } + rlEnd(); + rlDisableTexture(); + +} + + // Returns color with alpha applied, alpha goes from 0.0f to 1.0f Color Fade(Color color, float alpha) { |