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Diffstat (limited to 'deps/raylib/examples/shapes/shapes_collision_area.c')
-rw-r--r-- | deps/raylib/examples/shapes/shapes_collision_area.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/deps/raylib/examples/shapes/shapes_collision_area.c b/deps/raylib/examples/shapes/shapes_collision_area.c new file mode 100644 index 0000000..c2e2c1e --- /dev/null +++ b/deps/raylib/examples/shapes/shapes_collision_area.c @@ -0,0 +1,117 @@ +/******************************************************************************************* +* +* raylib [shapes] example - collision area +* +* Example originally created with raylib 2.5, last time updated with raylib 2.5 +* +* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified, +* BSD-like license that allows static linking with closed source software +* +* Copyright (c) 2013-2024 Ramon Santamaria (@raysan5) +* +********************************************************************************************/ + +#include "raylib.h" + +#include <stdlib.h> // Required for: abs() + +//------------------------------------------------------------------------------------ +// Program main entry point +//------------------------------------------------------------------------------------ +int main(void) +{ + // Initialization + //--------------------------------------------------------- + const int screenWidth = 800; + const int screenHeight = 450; + + InitWindow(screenWidth, screenHeight, "raylib [shapes] example - collision area"); + + // Box A: Moving box + Rectangle boxA = { 10, GetScreenHeight()/2.0f - 50, 200, 100 }; + int boxASpeedX = 4; + + // Box B: Mouse moved box + Rectangle boxB = { GetScreenWidth()/2.0f - 30, GetScreenHeight()/2.0f - 30, 60, 60 }; + + Rectangle boxCollision = { 0 }; // Collision rectangle + + int screenUpperLimit = 40; // Top menu limits + + bool pause = false; // Movement pause + bool collision = false; // Collision detection + + SetTargetFPS(60); // Set our game to run at 60 frames-per-second + //---------------------------------------------------------- + + // Main game loop + while (!WindowShouldClose()) // Detect window close button or ESC key + { + // Update + //----------------------------------------------------- + // Move box if not paused + if (!pause) boxA.x += boxASpeedX; + + // Bounce box on x screen limits + if (((boxA.x + boxA.width) >= GetScreenWidth()) || (boxA.x <= 0)) boxASpeedX *= -1; + + // Update player-controlled-box (box02) + boxB.x = GetMouseX() - boxB.width/2; + boxB.y = GetMouseY() - boxB.height/2; + + // Make sure Box B does not go out of move area limits + if ((boxB.x + boxB.width) >= GetScreenWidth()) boxB.x = GetScreenWidth() - boxB.width; + else if (boxB.x <= 0) boxB.x = 0; + + if ((boxB.y + boxB.height) >= GetScreenHeight()) boxB.y = GetScreenHeight() - boxB.height; + else if (boxB.y <= screenUpperLimit) boxB.y = (float)screenUpperLimit; + + // Check boxes collision + collision = CheckCollisionRecs(boxA, boxB); + + // Get collision rectangle (only on collision) + if (collision) boxCollision = GetCollisionRec(boxA, boxB); + + // Pause Box A movement + if (IsKeyPressed(KEY_SPACE)) pause = !pause; + //----------------------------------------------------- + + // Draw + //----------------------------------------------------- + BeginDrawing(); + + ClearBackground(RAYWHITE); + + DrawRectangle(0, 0, screenWidth, screenUpperLimit, collision? RED : BLACK); + + DrawRectangleRec(boxA, GOLD); + DrawRectangleRec(boxB, BLUE); + + if (collision) + { + // Draw collision area + DrawRectangleRec(boxCollision, LIME); + + // Draw collision message + DrawText("COLLISION!", GetScreenWidth()/2 - MeasureText("COLLISION!", 20)/2, screenUpperLimit/2 - 10, 20, BLACK); + + // Draw collision area + DrawText(TextFormat("Collision Area: %i", (int)boxCollision.width*(int)boxCollision.height), GetScreenWidth()/2 - 100, screenUpperLimit + 10, 20, BLACK); + } + + // Draw help instructions + DrawText("Press SPACE to PAUSE/RESUME", 20, screenHeight - 35, 20, LIGHTGRAY); + + DrawFPS(10, 10); + + EndDrawing(); + //----------------------------------------------------- + } + + // De-Initialization + //--------------------------------------------------------- + CloseWindow(); // Close window and OpenGL context + //---------------------------------------------------------- + + return 0; +} |