You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
228 lines
8.4 KiB
228 lines
8.4 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [textures] example - mouse painting
|
|
*
|
|
* Example complexity rating: [★★★☆] 3/4
|
|
*
|
|
* Example originally created with raylib 3.0, last time updated with raylib 3.0
|
|
*
|
|
* Example contributed by Chris Dill (@MysteriousSpace) 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) 2019-2025 Chris Dill (@MysteriousSpace) and Ramon Santamaria (@raysan5)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
#define MAX_COLORS_COUNT 23 // Number of colors available
|
|
|
|
//------------------------------------------------------------------------------------
|
|
// Program main entry point
|
|
//------------------------------------------------------------------------------------
|
|
int main(void)
|
|
{
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [textures] example - mouse painting");
|
|
|
|
// Colors to choose from
|
|
Color colors[MAX_COLORS_COUNT] = {
|
|
RAYWHITE, YELLOW, GOLD, ORANGE, PINK, RED, MAROON, GREEN, LIME, DARKGREEN,
|
|
SKYBLUE, BLUE, DARKBLUE, PURPLE, VIOLET, DARKPURPLE, BEIGE, BROWN, DARKBROWN,
|
|
LIGHTGRAY, GRAY, DARKGRAY, BLACK };
|
|
|
|
// Define colorsRecs data (for every rectangle)
|
|
Rectangle colorsRecs[MAX_COLORS_COUNT] = { 0 };
|
|
|
|
for (int i = 0; i < MAX_COLORS_COUNT; i++)
|
|
{
|
|
colorsRecs[i].x = 10 + 30.0f*i + 2*i;
|
|
colorsRecs[i].y = 10;
|
|
colorsRecs[i].width = 30;
|
|
colorsRecs[i].height = 30;
|
|
}
|
|
|
|
int colorSelected = 0;
|
|
int colorSelectedPrev = colorSelected;
|
|
int colorMouseHover = 0;
|
|
float brushSize = 20.0f;
|
|
bool mouseWasPressed = false;
|
|
|
|
Rectangle btnSaveRec = { 750, 10, 40, 30 };
|
|
bool btnSaveMouseHover = false;
|
|
bool showSaveMessage = false;
|
|
int saveMessageCounter = 0;
|
|
|
|
// Create a RenderTexture2D to use as a canvas
|
|
RenderTexture2D target = LoadRenderTexture(screenWidth, screenHeight);
|
|
|
|
// Clear render texture before entering the game loop
|
|
BeginTextureMode(target);
|
|
ClearBackground(colors[0]);
|
|
EndTextureMode();
|
|
|
|
SetTargetFPS(120); // Set our game to run at 120 frames-per-second
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
Vector2 mousePos = GetMousePosition();
|
|
|
|
// Move between colors with keys
|
|
if (IsKeyPressed(KEY_RIGHT)) colorSelected++;
|
|
else if (IsKeyPressed(KEY_LEFT)) colorSelected--;
|
|
|
|
if (colorSelected >= MAX_COLORS_COUNT) colorSelected = MAX_COLORS_COUNT - 1;
|
|
else if (colorSelected < 0) colorSelected = 0;
|
|
|
|
// Choose color with mouse
|
|
for (int i = 0; i < MAX_COLORS_COUNT; i++)
|
|
{
|
|
if (CheckCollisionPointRec(mousePos, colorsRecs[i]))
|
|
{
|
|
colorMouseHover = i;
|
|
break;
|
|
}
|
|
else colorMouseHover = -1;
|
|
}
|
|
|
|
if ((colorMouseHover >= 0) && IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
|
|
{
|
|
colorSelected = colorMouseHover;
|
|
colorSelectedPrev = colorSelected;
|
|
}
|
|
|
|
// Change brush size
|
|
brushSize += GetMouseWheelMove()*5;
|
|
if (brushSize < 2) brushSize = 2;
|
|
if (brushSize > 50) brushSize = 50;
|
|
|
|
if (IsKeyPressed(KEY_C))
|
|
{
|
|
// Clear render texture to clear color
|
|
BeginTextureMode(target);
|
|
ClearBackground(colors[0]);
|
|
EndTextureMode();
|
|
}
|
|
|
|
if (IsMouseButtonDown(MOUSE_BUTTON_LEFT) || (GetGestureDetected() == GESTURE_DRAG))
|
|
{
|
|
// Paint circle into render texture
|
|
// NOTE: To avoid discontinuous circles, we could store
|
|
// previous-next mouse points and just draw a line using brush size
|
|
BeginTextureMode(target);
|
|
if (mousePos.y > 50) DrawCircle((int)mousePos.x, (int)mousePos.y, brushSize, colors[colorSelected]);
|
|
EndTextureMode();
|
|
}
|
|
|
|
if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT))
|
|
{
|
|
if (!mouseWasPressed)
|
|
{
|
|
colorSelectedPrev = colorSelected;
|
|
colorSelected = 0;
|
|
}
|
|
|
|
mouseWasPressed = true;
|
|
|
|
// Erase circle from render texture
|
|
BeginTextureMode(target);
|
|
if (mousePos.y > 50) DrawCircle((int)mousePos.x, (int)mousePos.y, brushSize, colors[0]);
|
|
EndTextureMode();
|
|
}
|
|
else if (IsMouseButtonReleased(MOUSE_BUTTON_RIGHT) && mouseWasPressed)
|
|
{
|
|
colorSelected = colorSelectedPrev;
|
|
mouseWasPressed = false;
|
|
}
|
|
|
|
// Check mouse hover save button
|
|
if (CheckCollisionPointRec(mousePos, btnSaveRec)) btnSaveMouseHover = true;
|
|
else btnSaveMouseHover = false;
|
|
|
|
// Image saving logic
|
|
// NOTE: Saving painted texture to a default named image
|
|
if ((btnSaveMouseHover && IsMouseButtonReleased(MOUSE_BUTTON_LEFT)) || IsKeyPressed(KEY_S))
|
|
{
|
|
Image image = LoadImageFromTexture(target.texture);
|
|
ImageFlipVertical(&image);
|
|
ExportImage(image, "my_amazing_texture_painting.png");
|
|
UnloadImage(image);
|
|
showSaveMessage = true;
|
|
}
|
|
|
|
if (showSaveMessage)
|
|
{
|
|
// On saving, show a full screen message for 2 seconds
|
|
saveMessageCounter++;
|
|
if (saveMessageCounter > 240)
|
|
{
|
|
showSaveMessage = false;
|
|
saveMessageCounter = 0;
|
|
}
|
|
}
|
|
//----------------------------------------------------------------------------------
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
// NOTE: Render texture must be y-flipped due to default OpenGL coordinates (left-bottom)
|
|
DrawTextureRec(target.texture, (Rectangle) { 0, 0, (float)target.texture.width, (float)-target.texture.height }, (Vector2) { 0, 0 }, WHITE);
|
|
|
|
// Draw drawing circle for reference
|
|
if (mousePos.y > 50)
|
|
{
|
|
if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT)) DrawCircleLines((int)mousePos.x, (int)mousePos.y, brushSize, GRAY);
|
|
else DrawCircle(GetMouseX(), GetMouseY(), brushSize, colors[colorSelected]);
|
|
}
|
|
|
|
// Draw top panel
|
|
DrawRectangle(0, 0, GetScreenWidth(), 50, RAYWHITE);
|
|
DrawLine(0, 50, GetScreenWidth(), 50, LIGHTGRAY);
|
|
|
|
// Draw color selection rectangles
|
|
for (int i = 0; i < MAX_COLORS_COUNT; i++) DrawRectangleRec(colorsRecs[i], colors[i]);
|
|
DrawRectangleLines(10, 10, 30, 30, LIGHTGRAY);
|
|
|
|
if (colorMouseHover >= 0) DrawRectangleRec(colorsRecs[colorMouseHover], Fade(WHITE, 0.6f));
|
|
|
|
DrawRectangleLinesEx((Rectangle){ colorsRecs[colorSelected].x - 2, colorsRecs[colorSelected].y - 2,
|
|
colorsRecs[colorSelected].width + 4, colorsRecs[colorSelected].height + 4 }, 2, BLACK);
|
|
|
|
// Draw save image button
|
|
DrawRectangleLinesEx(btnSaveRec, 2, btnSaveMouseHover ? RED : BLACK);
|
|
DrawText("SAVE!", 755, 20, 10, btnSaveMouseHover ? RED : BLACK);
|
|
|
|
// Draw save image message
|
|
if (showSaveMessage)
|
|
{
|
|
DrawRectangle(0, 0, GetScreenWidth(), GetScreenHeight(), Fade(RAYWHITE, 0.8f));
|
|
DrawRectangle(0, 150, GetScreenWidth(), 80, BLACK);
|
|
DrawText("IMAGE SAVED!", 150, 180, 20, RAYWHITE);
|
|
}
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
UnloadRenderTexture(target); // Unload render texture
|
|
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|