anim code

CMakeLists.txt

@@ -18,6 +18,7 @@ set(SOURCES
 	src/player.c
 	src/util.c
 	src/camera.c
+	src/anim.c
 )
 
 set(LEVELS

inc/anim.h

@@ -0,0 +1,19 @@
+#pragma once
+#include "vec.h"
+#include <gint/display.h>
+
+struct Anim {
+	bopti_image_t *texture;
+	struct Vec pos;
+	struct Vec frame_dim;
+	int frame_duration;
+	int frame;
+	int life_ini;
+	int life;
+	int loop;
+};
+
+struct Anim anim_new(bopti_image_t *, int x, int y, int frame_width,
+                     int frame_duration, int loop);
+void anim_update(struct Anim *);
+void anim_draw(struct Anim *);

inc/tile.h

@@ -1,3 +1,3 @@
 #pragma once
 
-enum Tile { TILE_VOID, TILE_SOLID, TILE_OOB = TILE_SOLID };
+enum Tile { TILE_VOID, TILE_SOLID, TILE_PLAYER, TILE_OOB = TILE_SOLID };

src/anim.c

@@ -0,0 +1,49 @@
+#include "anim.h"
+#include "camera.h"
+#include "vec.h"
+#include <gint/display.h>
+
+struct Anim
+anim_new(bopti_image_t *texture, int x, int y, int frame_width,
+         int frame_duration, int loop)
+{
+	struct Anim anim;
+	anim.texture = texture;
+	anim.pos = VEC(x, y);
+	anim.frame_dim = VEC(frame_width, texture->height);
+	anim.frame_duration = frame_duration;
+	anim.frame = 0;
+	anim.life_ini = frame_duration * texture->width / frame_width;
+	anim.life = anim.life_ini;
+	anim.loop = loop;
+	return anim;
+}
+
+void
+anim_update(struct Anim *a)
+{
+	if (!a->life)
+		return;
+	a->life--;
+	if (a->life % a->frame_duration == 0)
+		a->frame++;
+	/* loop */
+	if (!a->life && a->loop) {
+		a->frame = 0;
+		a->life = a->life_ini;
+	}
+}
+
+void
+anim_draw(struct Anim *a)
+{
+	if (a->life) {
+		const struct Vec off = camera_offset();
+		const int x = a->pos.x + off.x;
+		const int y = a->pos.y + off.y;
+		const int rx = a->frame * a->frame_dim.x;
+		const int ry = 0;
+		dsubimage(x, y, a->texture, rx, ry, a->frame_dim.x,
+		          a->frame_dim.y, DIMAGE_NONE);
+	}
+}

src/level.c

@@ -62,7 +62,7 @@ level_find(enum Tile seek)
 		const enum Tile tile = self.data[i];
 		if (tile == seek) {
 			return VEC(i % self.width * TILE_SIZE,
-			           (int)(i / self.height) * TILE_SIZE);
+			           i / self.width * TILE_SIZE);
 		}
 	}
 	return VEC(0, 0);

src/main.c

@@ -26,11 +26,12 @@ main(void)
 	timer_start(timer);
 	input_init();
 	level_load(&lvl_test);
-	player_init(level_find(TILE_VOID));
+	player_init(level_find(TILE_PLAYER));
 	camera_init(player_pos());
 
 	while (!input_pressed(K_EXIT)) {
 		int i;
+		draw();
 		for (i = 0; i < frameskip; i++) {
 			if (has_ticked > frameskip) {
 				frameskip = has_ticked;
@@ -41,7 +42,6 @@ main(void)
 				has_ticked = 0;
 			update();
 		}
-		draw();
 	}
 
 	timer_stop(timer);