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Diffstat (limited to 'docs/examples/src/core_3d_picking.c')
| -rw-r--r-- | docs/examples/src/core_3d_picking.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/docs/examples/src/core_3d_picking.c b/docs/examples/src/core_3d_picking.c new file mode 100644 index 00000000..bd5c3347 --- /dev/null +++ b/docs/examples/src/core_3d_picking.c @@ -0,0 +1,104 @@ +/******************************************************************************************* +* +* raylib [core] example - Picking in 3d mode +* +* This example has been created using raylib 1.3 (www.raylib.com) +* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) +* +* Copyright (c) 2015 Ramon Santamaria (@raysan5) +* +********************************************************************************************/ + +#include "raylib.h" + +int main() +{ + // Initialization + //-------------------------------------------------------------------------------------- + int screenWidth = 800; + int screenHeight = 450; + + InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d picking"); + + // Define the camera to look into our 3d world + Camera camera; + camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position + camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point + camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target) + camera.fovy = 45.0f; // Camera field-of-view Y + + Vector3 cubePosition = { 0.0f, 1.0f, 0.0f }; + Vector3 cubeSize = { 2.0f, 2.0f, 2.0f }; + + Ray ray; // Picking line ray + + bool collision = false; + + SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode + + 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 + //---------------------------------------------------------------------------------- + UpdateCamera(&camera); // Update camera + + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) + { + // NOTE: This function is NOT WORKING properly! + ray = GetMouseRay(GetMousePosition(), camera); + + // Check collision between ray and box + collision = CheckCollisionRayBox(ray, + (BoundingBox){(Vector3){ cubePosition.x - cubeSize.x/2, cubePosition.y - cubeSize.y/2, cubePosition.z - cubeSize.z/2 }, + (Vector3){ cubePosition.x + cubeSize.x/2, cubePosition.y + cubeSize.y/2, cubePosition.z + cubeSize.z/2 }}); + } + //---------------------------------------------------------------------------------- + + // Draw + //---------------------------------------------------------------------------------- + BeginDrawing(); + + ClearBackground(RAYWHITE); + + Begin3dMode(camera); + + if (collision) + { + DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, RED); + DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, MAROON); + + DrawCubeWires(cubePosition, cubeSize.x + 0.2f, cubeSize.y + 0.2f, cubeSize.z + 0.2f, GREEN); + } + else + { + DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, GRAY); + DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, DARKGRAY); + } + + DrawRay(ray, MAROON); + + DrawGrid(10, 1.0f); + + End3dMode(); + + DrawText("Try selecting the box with mouse!", 240, 10, 20, DARKGRAY); + + if(collision) DrawText("BOX SELECTED", (screenWidth - MeasureText("BOX SELECTED", 30)) / 2, screenHeight * 0.1f, 30, GREEN); + + DrawFPS(10, 10); + + EndDrawing(); + //---------------------------------------------------------------------------------- + } + + // De-Initialization + //-------------------------------------------------------------------------------------- + CloseWindow(); // Close window and OpenGL context + //-------------------------------------------------------------------------------------- + + return 0; +}
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