start game physics

src/game.c

@@ -1,24 +1,31 @@
 #include "game.h"
 #include <SDL2/SDL_image.h>
 #include <SDL2/SDL_mixer.h>
+#include <SDL2/SDL_surface.h>
 #include "scaller.h"
 
+#define SPEED 1.f/10000000000
+#define GRAVITY 10000.f
+
 static RenderId_t menuObjects[10];
 static unsigned menuObjectsSize = 0;
 static Mix_Music * music;
 
 Scene_t gameScene;
 
-int game_staticRender(void){
-    MonitorSize_t size = renderer_getMonitorSize();
-    float aspectRatio = (float)size.width / size.height;
+static bool isSpaceKeypressed = false;
+static float deltaAccu = 0;
+static bool crashed = false;
+static const float startPersonPositionX = CAMERA_WIDTH * 0.23f;
+static const float startPersonPositionY = CAMERA_HEIGHT * 0.4f;
+static float personPositionX = startPersonPositionX;
+static float personPositionY = startPersonPositionY;
 
-    SDL_Surface* ppSurface = IMG_Load("./assets/img/pp.png");
-    if(ppSurface == NULL){
-        printf("cannot load background");
-        return -1;
-    }
+static const float personVelocityX = 200;
+static float personVelocityY = 0;
 
+
+static void playMusic(){
     music = Mix_LoadMUS("./assets/music/jojo arab.mp3");
 	if(music == NULL) {
 		fprintf(stderr, "Prout not found!\n");
@@ -29,23 +36,76 @@ int game_staticRender(void){
 		printf("Music sound could not be played!\n"
 			"SDL_Error: %s\n", Mix_GetError());
 		Mix_FreeMusic(music);
-		running = false;
+	    running = false;
 	}
+}
 
-    RenderObject_t pp;
-    strcpy(pp.name, "pp");
-    pp.z = 10;
-    pp.surface = ppSurface;
-    pp.width = 1;
-    pp.height = 1;
-    scaller(pp.surface, 1, &pp.width, &pp.height);
-    menuObjects[menuObjectsSize] = scene_addRenderObject(&gameScene, pp, CAMERA_WIDTH * 0.35f, 0);
+int game_staticRender(void){
+    playMusic();
+
+    MonitorSize_t size = renderer_getMonitorSize();
+    float aspectRatio = (float)size.width / size.height;
+
+    SDL_Surface* gameBackgroundSurface = IMG_Load("./assets/img/game_bg.png");
+    if(gameBackgroundSurface == NULL){
+        printf("cannot load background");
+        return -1;
+    }
+
+
+    RenderObject_t gameBackground;
+    strcpy(gameBackground.name, "gameBackground");
+    gameBackground.z = 0;
+    gameBackground.surface = gameBackgroundSurface;
+    scaller(gameBackground.surface, 1, &gameBackground.width, &gameBackground.height);
+    gameBackground.height = 1;
+    menuObjects[menuObjectsSize] = scene_addRenderObject(&gameScene, gameBackground, 0, 0);
     renderer_setScene(&gameScene);
     ++menuObjectsSize;
+
     return 0;
 }
 
 int game_render([[maybe_unused]] float delta){
+    for(unsigned i = 2; i < menuObjectsSize; ++i){
+        scene_removeRenderObject(&gameScene, menuObjects[i]);
+    }
+    menuObjectsSize = 2;
+
+    deltaAccu += delta;
+
+    SDL_Surface* buildingSurface = IMG_Load("./assets/img/building.png");
+    RenderObject_t building;
+    strcpy(building.name, "building");
+    building.z = 9;
+    building.surface = buildingSurface;
+    building.width = 0.25;
+    building.height = 1;
+    menuObjects[menuObjectsSize] = scene_addRenderObject(&gameScene, building, 0, 0);
+    ++menuObjectsSize;
+
+
+
+    SDL_Surface* personSurface = IMG_Load("./assets/img/person.png");
+    RenderObject_t person;
+    strcpy(person.name, "person");
+    person.z = 9;
+    person.surface = personSurface;
+    person.width = 0.25f;
+    scaller(person.surface, 0.05f, &person.width, &person.height);
+    // if(!crashed && deltaAccu >= SPEED && isSpaceKeypressed){
+    if(!crashed && isSpaceKeypressed){
+        personPositionX += personVelocityX * delta;
+        gameScene.x = personPositionX - startPersonPositionX;
+
+        personVelocityY += GRAVITY * delta;
+
+        personPositionY += personVelocityY * delta;
+        if(personPositionY + CAMERA_HEIGHT * person.height >= CAMERA_HEIGHT - 2) crashed = true;
+    }
+    menuObjects[menuObjectsSize] = scene_addRenderObject(&gameScene, person, personPositionX, personPositionY);
+    ++menuObjectsSize;
+
     return 0;
 }
 
@@ -54,3 +114,8 @@ void game_remove(void){
     Mix_FreeMusic(music);
     menuObjectsSize = 0;
 }
+
+
+void game_handleSpaceKeyInput(void){
+    isSpaceKeypressed = true;
+}