2 files changed, 139 insertions, 0 deletions
diff --git a/libphysics/test/Makefile b/libphysics/test/Makefile
new file mode 100644
index 0000000..eb1d5cb
--- /dev/null
+++ b/libphysics/test/Makefile
@@ -0,0 +1,19 @@
+CFLAGS=-I../../include -g 
+LDFLAGS=-L../ -lphysics `pkg-config --libs sdl3`
+
+all: vis
+
+clean:
+	rm -f vis
+	rm -f vis.o
+
+vis: ../libphysics.a vis.o
+	$(CC) $^ $(LDFLAGS) -o $@
+
+%.o: %.c
+	$(CC) $< $(CFLAGS) -c -o $@
+
+../libphysics.a:
+	$(MAKE) -C .. all
+
+.PHONY: all clean
diff --git a/libphysics/test/vis.c b/libphysics/test/vis.c
new file mode 100644
index 0000000..d1f3f6f
--- /dev/null
+++ b/libphysics/test/vis.c
@@ -0,0 +1,120 @@
+#include <SDL3/SDL.h>
+#include <vecmath.h>
+#include <physics.h>
+
+#include <stdlib.h>
+#include <assert.h>
+
+#include "../dat.h"
+
+#define SBODY 256
+
+static void process_events(void);
+static void render(void);
+
+static SDL_Window *window;
+static SDL_Renderer *renderer;
+static bool running;
+static Uint64 old_ticks, new_ticks;
+
+void
+renderrect(vec2 p, vec2 s)
+{
+	SDL_RenderRect(renderer, &(SDL_FRect){
+		.x = p[0] - s[0],
+		.y = p[1] - s[1], 
+		.w = s[0] * 2.0,
+		.h = s[1] * 2.0
+	});
+}
+
+int
+main()
+{
+	if(!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
+		fprintf(stderr, "SDL_Init(): %s\n", SDL_GetError());
+		return 1;
+	}
+
+	if(!SDL_CreateWindowAndRenderer("window", 800, 600, SDL_WINDOW_OPENGL, &window, &renderer)) {
+		fprintf(stderr, "SDL_CreateWindowAndRenderer: %s\n", SDL_GetError());
+		return -1;
+	}
+	SDL_SetRenderVSync(renderer, 1);
+
+	#define FLOAT_RAND (2 * (rand() / (float)RAND_MAX) - 1)
+
+	for(int i = 0; i < SBODY; i++) {
+		Body *b = phxnew(BTYPE_AABB);
+		assert(b != NULL);
+		phxsetpos(b, rand() % 800, rand() % 600);
+		phxsetsize(b, 16.0, 16.0);
+		phxapplyaccel(b, (float[]){ 100000 * FLOAT_RAND, 100000 * FLOAT_RAND });
+	}
+
+	phxsetmap(8, 8, (int[]) {
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 0, 0, 0, 1, 0, 0,
+		0, 1, 1, 0, 0, 1, 1, 0,
+		0, 1, 1, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 1, 1, 0,
+		0, 1, 1, 0, 0, 1, 1, 0,
+		0, 0, 1, 0, 0, 0, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+	});
+
+	running = 1;
+	old_ticks = SDL_GetTicksNS();
+	while(running) {
+		CollisionEvent event;
+		double delta;
+		process_events();
+
+		new_ticks = SDL_GetTicksNS();
+		delta = (new_ticks - old_ticks) / 1000000000.0;
+		old_ticks = new_ticks;
+		phxtick(delta);
+		while(phxnextcollevent(&event)) {
+			printf("Collision with %p and %p\n", event.body1, event.body2);
+		}
+
+		render();
+	}
+	
+	SDL_DestroyWindow(window);
+	SDL_Quit();
+	return 0;
+}
+
+void
+process_events()
+{
+	SDL_Event event;
+
+	while(SDL_PollEvent(&event)) {
+		switch(event.type) {
+			case SDL_EVENT_QUIT:
+				running = false;
+				break;
+		}
+	}
+}
+
+void
+render(void)
+{
+	SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0xFF);
+	SDL_RenderClear(renderer);
+
+	SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
+	for(int i = 0; i < phxbodypoolsize; i++) {
+		vec2 p, s;
+		Body *b = phxbodypool + i;
+		if(!b->active)
+			continue;
+		renderrect(b->pos, b->size);
+	}
+
+	SDL_RenderPresent(renderer);
+}