diff --git a/examples/core_2d_camera.c b/examples/core_2d_camera.c index 5e6b7c6c..73e1d65f 100644 --- a/examples/core_2d_camera.c +++ b/examples/core_2d_camera.c @@ -11,6 +11,8 @@ #include "raylib.h" +#define MAX_BUILDINGS 100 + int main() { // Initialization @@ -20,16 +22,31 @@ int main() InitWindow(screenWidth, screenHeight, "raylib [core] example - 2d camera"); + Rectangle player = { 400, 280, 40, 40 }; + Rectangle buildings[MAX_BUILDINGS] = { 0, 0, 0, 0 }; + Color buildColors[MAX_BUILDINGS] = { 80, 80, 80, 255 }; + + int spacing = 0; + + for (int i = 0; i < MAX_BUILDINGS; i++) + { + buildings[i].width = GetRandomValue(50, 200); + buildings[i].height = GetRandomValue(100, 800); + buildings[i].y = screenHeight - 130 - buildings[i].height; + buildings[i].x = -6000 + spacing; + + spacing += buildings[i].width; + + buildColors[i] = (Color){ GetRandomValue(200, 240), GetRandomValue(200, 240), GetRandomValue(200, 250), 255 }; + } + Camera2D camera; + camera.target = (Vector2){ player.x + 20, player.y + 20 }; camera.offset = (Vector2){ 0, 0 }; - camera.target = (Vector2){ 400, 200 }; camera.rotation = 0.0f; camera.zoom = 1.0f; - Rectangle player = { 400, 200, 40, 40 }; - camera.target = (Vector2){ player.x + 20, player.y + 20 }; - SetTargetFPS(60); //-------------------------------------------------------------------------------------- @@ -38,24 +55,36 @@ int main() { // Update //---------------------------------------------------------------------------------- - if (IsKeyDown(KEY_RIGHT)) player.x -= 2; - else if (IsKeyDown(KEY_LEFT)) player.x += 2; - else if (IsKeyDown(KEY_UP)) player.y -= 2; - else if (IsKeyDown(KEY_DOWN)) player.y += 2; + if (IsKeyDown(KEY_RIGHT)) + { + player.x += 2; // Player movement + camera.offset.x -= 2; // Camera displacement with player movement + } + else if (IsKeyDown(KEY_LEFT)) + { + player.x -= 2; // Player movement + camera.offset.x += 2; // Camera displacement with player movement + } // Camera target follows player camera.target = (Vector2){ player.x + 20, player.y + 20 }; - if (IsKeyDown(KEY_R)) camera.rotation--; - else if (IsKeyDown(KEY_F)) camera.rotation++; + // Camera rotation controls + if (IsKeyDown(KEY_A)) camera.rotation--; + else if (IsKeyDown(KEY_S)) camera.rotation++; - // Camera controls - if (IsKeyDown(KEY_R)) camera.rotation--; - else if (IsKeyDown(KEY_F)) camera.rotation++; + // Limit camera rotation to 80 degrees (-40 to 40) + if (camera.rotation > 40) camera.rotation = 40; + else if (camera.rotation < -40) camera.rotation = -40; + // Camera zoom controls camera.zoom += ((float)GetMouseWheelMove()*0.05f); - if (IsKeyPressed(KEY_Z)) + if (camera.zoom > 3.0f) camera.zoom = 3.0f; + else if (camera.zoom < 0.1f) camera.zoom = 0.1f; + + // Camera reset (zoom and rotation) + if (IsKeyPressed(KEY_R)) { camera.zoom = 1.0f; camera.rotation = 0.0f; @@ -64,17 +93,38 @@ int main() // Draw //---------------------------------------------------------------------------------- - BeginDrawingEx(camera); - + BeginDrawing(); + ClearBackground(RAYWHITE); + + Begin2dMode(camera); - DrawText("2D CAMERA TEST", 20, 20, 20, GRAY); + DrawRectangle(-6000, 320, 13000, 8000, DARKGRAY); + + for (int i = 0; i < MAX_BUILDINGS; i++) DrawRectangleRec(buildings[i], buildColors[i]); + + DrawRectangleRec(player, RED); + + DrawRectangle(camera.target.x, -500, 1, screenHeight*4, GREEN); + DrawRectangle(-500, camera.target.y, screenWidth*4, 1, GREEN); + + End2dMode(); + + DrawText("SCREEN AREA", 640, 10, 20, RED); + + DrawRectangle(0, 0, screenWidth, 5, RED); + DrawRectangle(0, 5, 5, screenHeight - 10, RED); + DrawRectangle(screenWidth - 5, 5, 5, screenHeight - 10, RED); + DrawRectangle(0, screenHeight - 5, screenWidth, 5, RED); - DrawRectangle(0, 300, screenWidth, 50, GRAY); - DrawRectangleRec(player, RED); + DrawRectangle( 10, 10, 250, 113, Fade(SKYBLUE, 0.5f)); + DrawRectangleLines( 10, 10, 250, 113, BLUE); - DrawRectangle(camera.origin.x, 0, 1, screenHeight, GREEN); - DrawRectangle(0, camera.origin.y, screenWidth, 1, GREEN); + DrawText("Free 2d camera controls:", 20, 20, 10, BLACK); + DrawText("- Right/Left to move Offset", 40, 40, 10, DARKGRAY); + DrawText("- Mouse Wheel to Zoom in-out", 40, 60, 10, DARKGRAY); + DrawText("- A / S to Rotate", 40, 80, 10, DARKGRAY); + DrawText("- R to reset Zoom and Rotation", 40, 100, 10, DARKGRAY); EndDrawing(); //----------------------------------------------------------------------------------