Init commit v1.0

1 files changed, 140 insertions, 0 deletions

diff --git a/deps/raylib/examples/textures/textures_polygon.c b/deps/raylib/examples/textures/textures_polygon.c
new file mode 100644
index 0000000..2491e1b
--- /dev/null
+++ b/deps/raylib/examples/textures/textures_polygon.c
@@ -0,0 +1,140 @@
+/*******************************************************************************************
+*
+*   raylib [shapes] example - Draw Textured Polygon
+*
+*   Example originally created with raylib 3.7, last time updated with raylib 3.7
+*
+*   Example contributed by Chris Camacho (@codifies) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   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) 2021-2024 Chris Camacho (@codifies) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#include "rlgl.h"           // Required for: Vertex definition
+#include "raymath.h"
+
+#define MAX_POINTS  11      // 10 points and back to the start
+
+// Draw textured polygon, defined by vertex and texture coordinates
+void DrawTexturePoly(Texture2D texture, Vector2 center, Vector2 *points, Vector2 *texcoords, int pointCount, Color tint);
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+    
+    InitWindow(screenWidth, screenHeight, "raylib [textures] example - textured polygon");
+
+    // Define texture coordinates to map our texture to poly
+    Vector2 texcoords[MAX_POINTS] = {
+        (Vector2){ 0.75f, 0.0f },
+        (Vector2){ 0.25f, 0.0f },
+        (Vector2){ 0.0f, 0.5f },
+        (Vector2){ 0.0f, 0.75f },
+        (Vector2){ 0.25f, 1.0f},
+        (Vector2){ 0.375f, 0.875f},
+        (Vector2){ 0.625f, 0.875f},
+        (Vector2){ 0.75f, 1.0f},
+        (Vector2){ 1.0f, 0.75f},
+        (Vector2){ 1.0f, 0.5f},
+        (Vector2){ 0.75f, 0.0f}  // Close the poly
+    };
+
+    // Define the base poly vertices from the UV's
+    // NOTE: They can be specified in any other way
+    Vector2 points[MAX_POINTS] = { 0 };
+    for (int i = 0; i < MAX_POINTS; i++)
+    {
+        points[i].x = (texcoords[i].x - 0.5f)*256.0f;
+        points[i].y = (texcoords[i].y - 0.5f)*256.0f;
+    }
+    
+    // Define the vertices drawing position
+    // NOTE: Initially same as points but updated every frame
+    Vector2 positions[MAX_POINTS] = { 0 };
+    for (int i = 0; i < MAX_POINTS; i++) positions[i] = points[i];
+
+    // Load texture to be mapped to poly
+    Texture texture = LoadTexture("resources/cat.png");
+
+    float angle = 0.0f;             // Rotation angle (in degrees)
+
+    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
+        //----------------------------------------------------------------------------------
+        // Update points rotation with an angle transform
+        // NOTE: Base points position are not modified
+        angle++;
+        for (int i = 0; i < MAX_POINTS; i++) positions[i] = Vector2Rotate(points[i], angle*DEG2RAD);
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            DrawText("textured polygon", 20, 20, 20, DARKGRAY);
+
+            DrawTexturePoly(texture, (Vector2){ GetScreenWidth()/2.0f, GetScreenHeight()/2.0f },
+                            positions, texcoords, MAX_POINTS, WHITE);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture); // Unload texture
+
+    CloseWindow();          // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
+
+// Draw textured polygon, defined by vertex and texture coordinates
+// NOTE: Polygon center must have straight line path to all points
+// without crossing perimeter, points must be in anticlockwise order
+void DrawTexturePoly(Texture2D texture, Vector2 center, Vector2 *points, Vector2 *texcoords, int pointCount, Color tint)
+{
+    rlSetTexture(texture.id);
+
+    // Texturing is only supported on RL_QUADS
+    rlBegin(RL_QUADS);
+
+        rlColor4ub(tint.r, tint.g, tint.b, tint.a);
+
+        for (int i = 0; i < pointCount - 1; i++)
+        {
+            rlTexCoord2f(0.5f, 0.5f);
+            rlVertex2f(center.x, center.y);
+
+            rlTexCoord2f(texcoords[i].x, texcoords[i].y);
+            rlVertex2f(points[i].x + center.x, points[i].y + center.y);
+
+            rlTexCoord2f(texcoords[i + 1].x, texcoords[i + 1].y);
+            rlVertex2f(points[i + 1].x + center.x, points[i + 1].y + center.y);
+
+            rlTexCoord2f(texcoords[i + 1].x, texcoords[i + 1].y);
+            rlVertex2f(points[i + 1].x + center.x, points[i + 1].y + center.y);
+        }
+    rlEnd();
+
+    rlSetTexture(0);
+}