Work on animation subsystem

- Also incomplete refactor of inline functions

1 files changed, 31 insertions, 14 deletions

diff --git a/src/game.c b/src/game.c
index 55b65c2..8659939 100644
--- a/src/game.c
+++ b/src/game.c
@@ -8,23 +8,10 @@
 #include "player.h"
 #include "background.h"
 #include <math.h>
+#include "utils.h"
 
 Game game;
 
-static inline bool ShouldDrawEntity(const Entity* e, DrawLayer layerDrawing) {
-    return EntityAllocated(e)
-        && (e->flags & ENTITY_VISIBLE);
-}
-
-static inline Rectangle GetSpriteDrawDestinationRectGlobal(const Entity* e, int spriteIndex) {
-    Rectangle destRectGlobal = e->sprites[spriteIndex].destRect;
-
-    destRectGlobal.x += e->position.x;
-    destRectGlobal.y += e->position.y;
-
-    return destRectGlobal;
-}
-
 void AddEntity(Entity* e) {
     static int nextId = 0;
 
@@ -158,3 +145,33 @@ void AddWall(float xpos, float ypos, float width, float height) {
     
     AddEntity(&wall);
 }
+
+static inline float GetCurrentFrameTime(const Animation* animation) {
+    return animation->frameTimes[animation->currentFrame];
+}
+
+void UpdateCurrentSpriteAnimation(Sprite* sprite, float dt) {
+    if (!IsAnimated(sprite))
+        return;
+
+    Animation* currentAnimation = GetCurrentAnimation(sprite);
+
+    if (currentAnimation->isComplete)
+        return;
+
+    currentAnimation->currentFrameTimer += dt;
+
+    if (currentAnimation->currentFrameTimer >= GetCurrentFrameTime(currentAnimation)) {
+        currentAnimation->currentFrame++;
+        currentAnimation->currentFrameTimer = 0;
+    }
+
+    if (currentAnimation->currentFrame >= currentAnimation->numFrames) {
+        if (currentAnimation->isLooping)
+            currentAnimation->currentFrame = 0;
+        else {
+            currentAnimation->currentFrame = currentAnimation->numFrames - 1;
+            currentAnimation->isComplete = true;
+        }
+    }
+}