Create Function_BoxCollision3d.c

3D/Function_BoxCollision3d.c

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+// Yet to be tested . . . working (star trek voice). .. 
+
+
+#include "raylib.h"
+#include <stdlib.h>
+#include <math.h>
+
+
+bool boxcollision(float x1,float y1,float z1,float w1,float h1,float d1, float x2, float y2, float z2,float w2,float h2,float d2);
+    
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib example.");
+
+    // We generate a checked image for texturing
+    Image checked = GenImageChecked(2, 2, 1, 1, BLACK, DARKGRAY);
+    Texture2D texture = LoadTextureFromImage(checked);
+    UnloadImage(checked);
+
+    Model model = { 0 };
+    model = LoadModelFromMesh(GenMeshCube(1.0f, 1.0f, 1.0f));
+    
+    // Set checked texture as default diffuse component for all models material
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture;
+
+    // Define the camera to look into our 3d world
+    Camera camera = { { 5.0f, 5.0f, 5.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
+
+
+    SetCameraMode(camera, CAMERA_FIRST_PERSON);     // Set camera mode
+
+
+    Vector3 bulletpos;
+    bulletpos = camera.position;
+    Vector3 bulletinc;
+    bulletinc.x = 0.05;
+    bulletinc.y = 0.00;
+    bulletinc.z = 0.0;
+    
+
+    Model bullet = { 0 };
+    bullet = LoadModelFromMesh(GenMeshCube(1.0f, 1.0f, 1.0f));
+    
+    // Set checked texture as default diffuse component for all models material
+    bullet.materials[0].maps[MAP_DIFFUSE].texture = texture;
+
+ 
+    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 internal camera and our camera
+
+        // Shoot the bullet.
+        if(IsKeyDown(KEY_SPACE)){
+            bulletpos = camera.position;
+            // Get the direction of where to shoot the bullet at.
+            float x1 = camera.position.x;
+            float y1 = camera.position.y;
+            float z1 = camera.position.z;
+            float x2 = camera.target.x;
+            float y2 = camera.target.y;
+            float z2 = camera.target.z;
+            float delta_x = x2 - x1;
+            float delta_y = y2 - y1;
+            float delta_z = z2 - z1;
+            
+            float len = sqrt(delta_x*delta_x+delta_y*delta_y+delta_z*delta_z);
+            delta_x = delta_x / len;
+            delta_y = delta_y / len;            
+            delta_z = delta_z / len;          
+            bulletinc.x = delta_x;
+            bulletinc.y = delta_y;
+            bulletinc.z = delta_z;
+        }
+
+        
+        // update the bullet.
+        bulletpos.x += bulletinc.x;
+        bulletpos.y += bulletinc.y;
+        bulletpos.z += bulletinc.z;
+        //----------------------------------------------------------------------------------
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            BeginMode3D(camera);
+
+            // Draw a floor.
+            for(int x=0;x<50;x++){
+            for(int z=0;z<50;z++){
+                Vector3 position;
+                position.x = x;
+                position.y = 0;
+                position.z = z;
+                DrawModel(model, position, 1.0f, WHITE);
+            }
+            }
+
+            // Draw our bullet.
+            DrawModel(bullet, bulletpos, 1.0f, WHITE);
+
+            EndMode3D();
+            
+            DrawText("Press space and aim to shoot bullet.",100,100,30,YELLOW);
+            DrawFPS(0,0);
+            
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+   UnloadTexture(texture); // Unload texture
+
+    // Unload models data (GPU VRAM)
+    UnloadModel(model);
+    UnloadModel(bullet);
+
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+
+
+}
+
+bool boxcollision(  float x1, float y1, float z1,float w1,float h1,float d1, 
+                    float x2, float y2, float z2,float w2,float h2,float d2){
+    return  (x1 <= x2+w2 && x1+w1 >= x2) &&
+            (y1 <= y2+h2 && y1+h1 >= y2) &&
+            (z1 <= z2+d2 && z1+d1 >= z2);
+}