1 files changed, 55 insertions, 0 deletions
diff --git a/src/engine/animator.c b/src/engine/animator.c
new file mode 100644
index 0000000..1af8dde
--- /dev/null
+++ b/src/engine/animator.c
@@ -0,0 +1,55 @@
+#include "engine/animator.h"
+#include "engine/entity.h"
+#include "engine/maths.h"
+#include "ppu/consts.h"
+#include "ppu/ppu.h"
+
+
+#define hh_white_palette 6
+
+void hh_animate_hit(hh_s_rendering* in, bool hit) {
+	if (hit) {
+		in->fam.palette_index = hh_white_palette;
+	} else {
+		in->fam.palette_index = in->palette;
+	}
+}
+
+void hh_animate(hh_s_rendering* in, uint16_t start, uint16_t end, uint8_t step) {
+	if (in->fam.palette_index >= start && in->fam.palette_index < end) {
+		in->fam.palette_index += step;
+	} else {// rollover
+		in->fam.palette_index = start;
+	}
+}
+
+//TODO: if entity not inside of screen, don't update idx
+uint16_t hh_update_sprite(uint16_t idx, hh_entity* in, vec_cor cam) {
+	hh_animate_hit(&in->render, in->is_hit);
+	hh_s_ppu_loc_fam_entry temp = in->render.fam;
+	for (int y = 0; y < CEILI(in->size.y,16); y++) {
+		temp.position_y = CLAMP(in->pos.y - cam.y + y*HH_PPU_SPRITE_HEIGHT, -16, HH_PPU_SCREEN_HEIGHT);
+		for (int x = 0; x < CEILI(in->size.x,16); x++) {
+			temp.position_x = CLAMP(in->pos.x - cam.x + x*HH_PPU_SPRITE_WIDTH, -16, HH_PPU_SCREEN_WIDTH);
+			hh_ppu_update_foreground(++idx, temp);	
+			temp.tilemap_index++;
+		}
+	}
+	return idx;
+}
+
+
+// void hh_update_sprite(hh_entity* in, vec_cor cam) {
+// 	hh_animate_hit(&in->render, in->is_hit);
+// 	// uint16_t idx = in->render.ppu_foreground_index;
+// 	uint16_t idx = 0;
+// 	hh_s_ppu_loc_fam_entry temp = in->render.fam;
+// 	for (int y = 0; y < CEILI(in->size.y,16); y++) {
+// 		temp.position_y = CLAMP(in->pos.y - cam.y + y*HH_PPU_SPRITE_HEIGHT, -16, HH_PPU_SCREEN_HEIGHT);
+// 		for (int x = 0; x < CEILI(in->size.x,16); x++) {
+// 			temp.position_x = CLAMP(in->pos.x - cam.x + x*HH_PPU_SPRITE_WIDTH, -16, HH_PPU_SCREEN_WIDTH);
+// 			hh_ppu_update_foreground(idx++, temp);	
+// 			temp.tilemap_index++;
+// 		}
+// 	}
+// }