adicionado camera

1 files changed, 34 insertions, 10 deletions

diff --git a/sdl3_main.c b/sdl3_main.c
index 1a20d15..83be4ab 100644
--- a/sdl3_main.c
+++ b/sdl3_main.c
@@ -1,4 +1,3 @@
-#include <SDL3/SDL_rect.h>
 #include <math.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -36,6 +35,8 @@ static Player player;
 static Ghost ghosts[1024];
 static Bullet bullet[1024];
 
+static float camera_x, camera_y;
+
 static bool shot;
 static int shotx, shoty;
 
@@ -81,13 +82,37 @@ main()
 void
 render(void)
 {
+	{
+		float plx, ply, minx, miny, maxx, maxy;
+
+		plx = player.x - camera_x;
+		ply = player.y - camera_y;
+
+		minx = plx - 80;
+		miny = ply - 80;
+		maxx = plx + 80;
+		maxy = ply + 80;
+		
+		if(minx < 0)
+			camera_x += minx;
+
+		if(miny < 0)
+			camera_y += miny;
+
+		if(maxx > 800)
+			camera_x += (maxx - 800);
+
+		if(maxy > 600)
+			camera_y += (maxy - 600);
+	}
+
 	SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0xFF);
 	SDL_RenderClear(renderer);
 
 	SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
 	SDL_RenderRect(renderer, &(SDL_FRect){
-		.x = player.x - 15,
-		.y = player.y - 15, 
+		.x = player.x - 15 - camera_x,
+		.y = player.y - 15 - camera_y, 
 		.w = 30,
 		.h = 30
 	});
@@ -98,8 +123,8 @@ render(void)
 
 		SDL_SetRenderDrawColor(renderer, 0xAA, 0xAA, 0xAA, 0xFF);
 		SDL_RenderRect(renderer, &(SDL_FRect){
-			.x = ghosts[i].x - 15,
-			.y = ghosts[i].y - 15, 
+			.x = ghosts[i].x - 15 - camera_x,
+			.y = ghosts[i].y - 15 - camera_y, 
 			.w = 30,
 			.h = 30
 		});
@@ -111,8 +136,8 @@ render(void)
 
 		SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0x00, 0xFF);
 		SDL_RenderRect(renderer, &(SDL_FRect){
-			.x = bullet[i].x - 2,
-			.y = bullet[i].y - 2, 
+			.x = bullet[i].x - 2 - camera_x,
+			.y = bullet[i].y - 2 - camera_y, 
 			.w = 4,
 			.h = 4
 		});
@@ -255,11 +280,10 @@ process_events()
 				break;
 			case SDL_EVENT_MOUSE_BUTTON_DOWN:
 				shot = true;
-				shotx = event.button.x;
-				shoty = event.button.y;
+				shotx = event.button.x + camera_x;
+				shoty = event.button.y + camera_y;
 				break;
 		}
 	}
 }
 
-