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Diffstat (limited to 'deps/raylib/examples/textures/textures_draw_tiled.c')
| -rw-r--r-- | deps/raylib/examples/textures/textures_draw_tiled.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/deps/raylib/examples/textures/textures_draw_tiled.c b/deps/raylib/examples/textures/textures_draw_tiled.c new file mode 100644 index 0000000..6998365 --- /dev/null +++ b/deps/raylib/examples/textures/textures_draw_tiled.c @@ -0,0 +1,256 @@ +/******************************************************************************************* +* +* raylib [textures] example - Draw part of the texture tiled +* +* Example originally created with raylib 3.0, last time updated with raylib 4.2 +* +* Example contributed by Vlad Adrian (@demizdor) 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) 2020-2024 Vlad Adrian (@demizdor) and Ramon Santamaria (@raysan5) +* +********************************************************************************************/ + +#include "raylib.h" + +#define SIZEOF(A) (sizeof(A)/sizeof(A[0])) +#define OPT_WIDTH 220 // Max width for the options container +#define MARGIN_SIZE 8 // Size for the margins +#define COLOR_SIZE 16 // Size of the color select buttons + +// Draw part of a texture (defined by a rectangle) with rotation and scale tiled into dest. +void DrawTextureTiled(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, float scale, Color tint); + +//------------------------------------------------------------------------------------ +// Program main entry point +//------------------------------------------------------------------------------------ +int main(void) +{ + // Initialization + //-------------------------------------------------------------------------------------- + const int screenWidth = 800; + const int screenHeight = 450; + + SetConfigFlags(FLAG_WINDOW_RESIZABLE); // Make the window resizable + InitWindow(screenWidth, screenHeight, "raylib [textures] example - Draw part of a texture tiled"); + + // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required) + Texture texPattern = LoadTexture("resources/patterns.png"); + SetTextureFilter(texPattern, TEXTURE_FILTER_TRILINEAR); // Makes the texture smoother when upscaled + + // Coordinates for all patterns inside the texture + const Rectangle recPattern[] = { + (Rectangle){ 3, 3, 66, 66 }, + (Rectangle){ 75, 3, 100, 100 }, + (Rectangle){ 3, 75, 66, 66 }, + (Rectangle){ 7, 156, 50, 50 }, + (Rectangle){ 85, 106, 90, 45 }, + (Rectangle){ 75, 154, 100, 60} + }; + + // Setup colors + const Color colors[] = { BLACK, MAROON, ORANGE, BLUE, PURPLE, BEIGE, LIME, RED, DARKGRAY, SKYBLUE }; + enum { MAX_COLORS = SIZEOF(colors) }; + Rectangle colorRec[MAX_COLORS] = { 0 }; + + // Calculate rectangle for each color + for (int i = 0, x = 0, y = 0; i < MAX_COLORS; i++) + { + colorRec[i].x = 2.0f + MARGIN_SIZE + x; + colorRec[i].y = 22.0f + 256.0f + MARGIN_SIZE + y; + colorRec[i].width = COLOR_SIZE*2.0f; + colorRec[i].height = (float)COLOR_SIZE; + + if (i == (MAX_COLORS/2 - 1)) + { + x = 0; + y += COLOR_SIZE + MARGIN_SIZE; + } + else x += (COLOR_SIZE*2 + MARGIN_SIZE); + } + + int activePattern = 0, activeCol = 0; + float scale = 1.0f, rotation = 0.0f; + + SetTargetFPS(60); + //--------------------------------------------------------------------------------------- + + // Main game loop + while (!WindowShouldClose()) // Detect window close button or ESC key + { + // Update + //---------------------------------------------------------------------------------- + // Handle mouse + if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) + { + const Vector2 mouse = GetMousePosition(); + + // Check which pattern was clicked and set it as the active pattern + for (int i = 0; i < SIZEOF(recPattern); i++) + { + if (CheckCollisionPointRec(mouse, (Rectangle){ 2 + MARGIN_SIZE + recPattern[i].x, 40 + MARGIN_SIZE + recPattern[i].y, recPattern[i].width, recPattern[i].height })) + { + activePattern = i; + break; + } + } + + // Check to see which color was clicked and set it as the active color + for (int i = 0; i < MAX_COLORS; ++i) + { + if (CheckCollisionPointRec(mouse, colorRec[i])) + { + activeCol = i; + break; + } + } + } + + // Handle keys + + // Change scale + if (IsKeyPressed(KEY_UP)) scale += 0.25f; + if (IsKeyPressed(KEY_DOWN)) scale -= 0.25f; + if (scale > 10.0f) scale = 10.0f; + else if ( scale <= 0.0f) scale = 0.25f; + + // Change rotation + if (IsKeyPressed(KEY_LEFT)) rotation -= 25.0f; + if (IsKeyPressed(KEY_RIGHT)) rotation += 25.0f; + + // Reset + if (IsKeyPressed(KEY_SPACE)) { rotation = 0.0f; scale = 1.0f; } + //---------------------------------------------------------------------------------- + + // Draw + //---------------------------------------------------------------------------------- + BeginDrawing(); + ClearBackground(RAYWHITE); + + // Draw the tiled area + DrawTextureTiled(texPattern, recPattern[activePattern], (Rectangle){(float)OPT_WIDTH+MARGIN_SIZE, (float)MARGIN_SIZE, GetScreenWidth() - OPT_WIDTH - 2.0f*MARGIN_SIZE, GetScreenHeight() - 2.0f*MARGIN_SIZE}, + (Vector2){0.0f, 0.0f}, rotation, scale, colors[activeCol]); + + // Draw options + DrawRectangle(MARGIN_SIZE, MARGIN_SIZE, OPT_WIDTH - MARGIN_SIZE, GetScreenHeight() - 2*MARGIN_SIZE, ColorAlpha(LIGHTGRAY, 0.5f)); + + DrawText("Select Pattern", 2 + MARGIN_SIZE, 30 + MARGIN_SIZE, 10, BLACK); + DrawTexture(texPattern, 2 + MARGIN_SIZE, 40 + MARGIN_SIZE, BLACK); + DrawRectangle(2 + MARGIN_SIZE + (int)recPattern[activePattern].x, 40 + MARGIN_SIZE + (int)recPattern[activePattern].y, (int)recPattern[activePattern].width, (int)recPattern[activePattern].height, ColorAlpha(DARKBLUE, 0.3f)); + + DrawText("Select Color", 2+MARGIN_SIZE, 10+256+MARGIN_SIZE, 10, BLACK); + for (int i = 0; i < MAX_COLORS; i++) + { + DrawRectangleRec(colorRec[i], colors[i]); + if (activeCol == i) DrawRectangleLinesEx(colorRec[i], 3, ColorAlpha(WHITE, 0.5f)); + } + + DrawText("Scale (UP/DOWN to change)", 2 + MARGIN_SIZE, 80 + 256 + MARGIN_SIZE, 10, BLACK); + DrawText(TextFormat("%.2fx", scale), 2 + MARGIN_SIZE, 92 + 256 + MARGIN_SIZE, 20, BLACK); + + DrawText("Rotation (LEFT/RIGHT to change)", 2 + MARGIN_SIZE, 122 + 256 + MARGIN_SIZE, 10, BLACK); + DrawText(TextFormat("%.0f degrees", rotation), 2 + MARGIN_SIZE, 134 + 256 + MARGIN_SIZE, 20, BLACK); + + DrawText("Press [SPACE] to reset", 2 + MARGIN_SIZE, 164 + 256 + MARGIN_SIZE, 10, DARKBLUE); + + // Draw FPS + DrawText(TextFormat("%i FPS", GetFPS()), 2 + MARGIN_SIZE, 2 + MARGIN_SIZE, 20, BLACK); + EndDrawing(); + //---------------------------------------------------------------------------------- + } + + // De-Initialization + //-------------------------------------------------------------------------------------- + UnloadTexture(texPattern); // Unload texture + + CloseWindow(); // Close window and OpenGL context + //-------------------------------------------------------------------------------------- + + return 0; +} + +// Draw part of a texture (defined by a rectangle) with rotation and scale tiled into dest. +void DrawTextureTiled(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, float scale, Color tint) +{ + if ((texture.id <= 0) || (scale <= 0.0f)) return; // Wanna see a infinite loop?!...just delete this line! + if ((source.width == 0) || (source.height == 0)) return; + + int tileWidth = (int)(source.width*scale), tileHeight = (int)(source.height*scale); + if ((dest.width < tileWidth) && (dest.height < tileHeight)) + { + // Can fit only one tile + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)dest.width/tileWidth)*source.width, ((float)dest.height/tileHeight)*source.height}, + (Rectangle){dest.x, dest.y, dest.width, dest.height}, origin, rotation, tint); + } + else if (dest.width <= tileWidth) + { + // Tiled vertically (one column) + int dy = 0; + for (;dy+tileHeight < dest.height; dy += tileHeight) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)dest.width/tileWidth)*source.width, source.height}, (Rectangle){dest.x, dest.y + dy, dest.width, (float)tileHeight}, origin, rotation, tint); + } + + // Fit last tile + if (dy < dest.height) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)dest.width/tileWidth)*source.width, ((float)(dest.height - dy)/tileHeight)*source.height}, + (Rectangle){dest.x, dest.y + dy, dest.width, dest.height - dy}, origin, rotation, tint); + } + } + else if (dest.height <= tileHeight) + { + // Tiled horizontally (one row) + int dx = 0; + for (;dx+tileWidth < dest.width; dx += tileWidth) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, source.width, ((float)dest.height/tileHeight)*source.height}, (Rectangle){dest.x + dx, dest.y, (float)tileWidth, dest.height}, origin, rotation, tint); + } + + // Fit last tile + if (dx < dest.width) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)(dest.width - dx)/tileWidth)*source.width, ((float)dest.height/tileHeight)*source.height}, + (Rectangle){dest.x + dx, dest.y, dest.width - dx, dest.height}, origin, rotation, tint); + } + } + else + { + // Tiled both horizontally and vertically (rows and columns) + int dx = 0; + for (;dx+tileWidth < dest.width; dx += tileWidth) + { + int dy = 0; + for (;dy+tileHeight < dest.height; dy += tileHeight) + { + DrawTexturePro(texture, source, (Rectangle){dest.x + dx, dest.y + dy, (float)tileWidth, (float)tileHeight}, origin, rotation, tint); + } + + if (dy < dest.height) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, source.width, ((float)(dest.height - dy)/tileHeight)*source.height}, + (Rectangle){dest.x + dx, dest.y + dy, (float)tileWidth, dest.height - dy}, origin, rotation, tint); + } + } + + // Fit last column of tiles + if (dx < dest.width) + { + int dy = 0; + for (;dy+tileHeight < dest.height; dy += tileHeight) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)(dest.width - dx)/tileWidth)*source.width, source.height}, + (Rectangle){dest.x + dx, dest.y + dy, dest.width - dx, (float)tileHeight}, origin, rotation, tint); + } + + // Draw final tile in the bottom right corner + if (dy < dest.height) + { + DrawTexturePro(texture, (Rectangle){source.x, source.y, ((float)(dest.width - dx)/tileWidth)*source.width, ((float)(dest.height - dy)/tileHeight)*source.height}, + (Rectangle){dest.x + dx, dest.y + dy, dest.width - dx, dest.height - dy}, origin, rotation, tint); + } + } + } +} |