nebula animation

dasher.cpp

@@ -9,7 +9,7 @@ int main() {
     InitWindow(windowWidth, windowHeight, "ECS Dapper Dasher");
     
     // Acceleration due to gravity (pixels per frame/frame)
-    const int gravity{ 1 };
+    const int gravity{ 1'000 };
 
     // Scarfy setup
     Texture2D scarfy = LoadTexture("textures/scarfy.png"); // Load the texture
@@ -22,18 +22,38 @@ int main() {
     scarfyPos.x = windowWidth / 2 - scarfyRect.width / 2;
     scarfyPos.y = windowHeight - scarfyRect.height;
 
+    // Nebula setup
+    Texture2D nebula = LoadTexture("textures/12_nebula_spritesheet.png"); // Load the texture
+    Rectangle nebRect{0.0, 0.0, nebula.width / 8, nebula.height / 8};
+    Vector2 nebulaPos{windowWidth, windowHeight - nebRect.height};
+
+    int nebFrame{}; // Nebula animation frame
+    const float nebUpdateTime{1.0 / 12.0}; // Nebula running time
+    float nebRunningTime{}; // Nebula time since last frame change
+
+    int nebVel{-200}; // Nebula x velocity (pixels per second)
+
+    // Animation Frame
+    int frame{};
+
+    const float updateTime{1.0 / 12.0}; // Time between frames
+    float runningTime{}; // Time since last frame change
+
     // Is the rectangle in the air
     bool isInAir{};
 
     int velocity{}; // Current velocity
 
-    // Jump velocity
-    const int jumpVelocity{-22};
+    // Jump velocity (pixels per second)
+    const int jumpVelocity{-600};
 
     // Main game loop
     SetTargetFPS(60);
     while (!WindowShouldClose())
     {
+        // Delta time
+        const float dT = GetFrameTime(); // Delta time (time since last frame)
+        
         // Start Game Logic
         BeginDrawing();
         ClearBackground(WHITE);
@@ -45,7 +65,7 @@ int main() {
         }
         else
         {
-            velocity += gravity; // Apply gravity when in the air
+            velocity += gravity * dT; // Apply gravity when in the air
             isInAir = true;
         }
 
@@ -54,9 +74,48 @@ int main() {
             velocity += jumpVelocity; // Jump velocity
         }
         
+        // Nebula movement
+        nebulaPos.x += nebVel * dT;
+
         // Update position
-        scarfyPos.y += velocity;
-        
+        scarfyPos.y += velocity * dT;
+
+        // Scarfy Animation Logic
+        if (!isInAir) 
+        {
+            // Update running time
+            runningTime += dT;
+            if (runningTime >= updateTime) 
+            {
+                runningTime = 0.0;
+                
+                // Update animation frame
+                scarfyRect.x = frame * scarfyRect.width;
+                frame++;
+                if (frame > 5)
+                {
+                    frame = 0;
+                }
+            }
+        }
+
+        // Nebula animation frame
+        nebRunningTime += dT;
+        if (nebRunningTime >= (nebUpdateTime)) 
+        {
+            nebRunningTime = 0.0;
+            nebRect.x = nebFrame * nebRect.width;
+            nebFrame++;
+            if (nebFrame > 7)
+            {
+                nebFrame = 0;
+            }
+        }
+
+        // draw Nebula
+        DrawTextureRec(nebula, nebRect, nebulaPos, WHITE); // Draw the texture
+
+        // draw Scarfy
         DrawTextureRec(scarfy, scarfyRect, scarfyPos, WHITE); // Draw the texture
         
         // End Game Logic
@@ -65,6 +124,7 @@ int main() {
     
     // Unload texture
     UnloadTexture(scarfy);
+    UnloadTexture(nebula);
 
     // Close the window properly
     CloseWindow();