InventorX/C3D
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InventorXtreme 2023-12-04 18:50:16 -05:00
parent 75f9f7fbb2
commit 042c004341
2 changed files with 13 additions and 8 deletions
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4
Makefile
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@ -1,7 +1,7 @@
CC = gcc
CFLAGS = -g
CFLAGS = -pg -O2
LDFLAGS = -pg
LDLIBS = -lraylib -lm
objects = c3d.o
c3d: $(objects)

17
c3d.c
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@ -74,17 +74,17 @@ struct Tri2DArray {
};
typedef struct Tri2DArray Tri2DArray;
float Sign(Vector2 v1, Vector2 v2, Vector2 v3) {
return (v1.x - v3.x) * (v2.y - v3.y) - (v2.x - v3.x) * (v1.y - v3.y);
float Sign(Vector2* v1, Vector2* v2, Vector2* v3) {
return (v1->x - v3->x) * (v2->y - v3->y) - (v2->x - v3->x) * (v1->y - v3->y);
}
bool IsInTri(Tri2D tri, Vector2 p) {
inline bool IsInTri(Tri2D tri, Vector2 p) {
float d1, d2, d3;
bool has_neg, has_pos;
d1 = Sign(p, tri.a, tri.b);
d2 = Sign(p, tri.b, tri.c);
d3 = Sign(p, tri.c, tri.a);
d1 = Sign(&p, &tri.a, &tri.b);
d2 = Sign(&p, &tri.b, &tri.c);
d3 = Sign(&p, &tri.c, &tri.a);
has_neg = (d1 < 0) || (d2 < 0) || (d3 < 0);
has_pos = (d1 > 0) || (d2 > 0) || (d3 > 0);
@ -381,6 +381,11 @@ int main() {
BeginDrawing();
DrawTexturePro(renderTexture.texture, (Rectangle){0,0,renderTexture.texture.width,-renderTexture.texture.height},(Rectangle){0,0,SCREENWIDTH,SCREENHEIGHT},(Vector2){0,0},0,WHITE);
char fpstext[40];
sprintf(fpstext,"%d",GetFPS());
DrawText( fpstext ,0,0,20,WHITE);
EndDrawing();
}