Merge pull request #75 from sDos280/master

electronstudio · web-flow · commit c437d62907fa · 2022-07-31T12:39:26.000+01:00
adding more examples
diff --git a/examples/core/core_scissor_test.py b/examples/core/core_scissor_test.py
@@ -0,0 +1,65 @@
+"""
+
+raylib [core] example - Scissor Test
+
+"""
+from pyray import *
+from raylib.colors import (
+    RAYWHITE,
+    LIGHTGRAY,
+    RED,
+    BLACK
+)
+from raylib import (
+    KEY_S
+)
+
+# Initialization
+# --------------------------------------------------------------------------------------
+SCREEN_WIDTH = 800
+SCREEN_HEIGHT = 450
+
+init_window(SCREEN_WIDTH, SCREEN_HEIGHT, "raylib [core] example - scissor test")
+
+scissorArea = Rectangle(0, 0, 300, 300)
+scissorMode = True
+
+set_target_fps(60)  # Set our game to run at 60 frames-per-second
+# --------------------------------------------------------------------------------------
+
+# Main game loop
+while not window_should_close():  # Detect window close button or ESC key
+    # Update
+    # ----------------------------------------------------------------------------------
+    if is_key_pressed(KEY_S):
+        scissorMode = not scissorMode
+
+    # Centre the scissor area around the mouse position
+    scissorArea.x = get_mouse_x() - scissorArea.width/2
+    scissorArea.y = get_mouse_y() - scissorArea.height/2
+    # ----------------------------------------------------------------------------------
+
+
+    # Draw
+    # ----------------------------------------------------------------------------------
+    begin_drawing()
+
+    clear_background(RAYWHITE)
+    if scissorMode:
+        begin_scissor_mode(int(scissorArea.x), int(scissorArea.y), int(scissorArea.width), int(scissorArea.height))
+
+    # Draw full screen rectangle and some text
+    # NOTE: Only part defined by scissor area will be rendered
+    draw_rectangle(0, 0, get_screen_width(), get_screen_height(), RED)
+    draw_text("Move the mouse around to reveal this text!", 190, 200, 20, LIGHTGRAY)
+
+    if scissorMode:
+        end_scissor_mode()
+
+    draw_rectangle_lines_ex(scissorArea, 1, BLACK)
+    draw_text("Press S to toggle scissor test", 10, 10, 20, BLACK)
+
+    end_drawing()
+
+# De-Initialization
+close_window()  # Close window and OpenGL context
diff --git a/examples/core/core_window_should_close.py b/examples/core/core_window_should_close.py
@@ -0,0 +1,74 @@
+"""
+
+raylib [core] example - Window Should Close
+
+"""
+from pyray import *
+from raylib.colors import (
+    RAYWHITE,
+    LIGHTGRAY,
+    WHITE,
+    BLACK
+)
+from raylib import (
+    KEY_NULL,
+    KEY_ESCAPE,
+    KEY_Y,
+    KEY_N
+)
+
+# Initialization
+# --------------------------------------------------------------------------------------
+SCREEN_WIDTH = 800
+SCREEN_HEIGHT = 450
+
+init_window(SCREEN_WIDTH, SCREEN_HEIGHT, "raylib [core] example - window should close")
+
+set_exit_key(KEY_NULL)  # Disable KEY_ESCAPE to close window, X-button still works
+
+exitWindowRequested = False  # Flag to request window to exit
+exitWindow = False  # Flag to set window to exit
+
+set_target_fps(60)  # Set our game to run at 60 frames-per-second
+# --------------------------------------------------------------------------------------
+
+# Main game loop
+while not exitWindow:
+
+    # Update
+    # ----------------------------------------------------------------------------------
+    #  Detect if X-button or KEY_ESCAPE have been pressed to close window
+    if window_should_close() or is_key_pressed(KEY_ESCAPE):
+        exitWindowRequested = True
+
+    if exitWindowRequested:
+
+        # A request for close window has been issued, we can save data before closing
+        # or just show a message asking for confirmation
+
+        if is_key_pressed(KEY_Y):
+            exitWindow = True
+        elif is_key_pressed(KEY_N):
+            exitWindowRequested = False
+
+    # ----------------------------------------------------------------------------------
+
+    # Draw
+    # ----------------------------------------------------------------------------------
+    begin_drawing()
+
+    clear_background(RAYWHITE)
+
+    if exitWindowRequested:
+
+        draw_rectangle(0, 100, SCREEN_WIDTH, 200, BLACK)
+        draw_text("Are you sure you want to exit program? [Y/N]", 40, 180, 30, WHITE)
+
+    else:
+        draw_text("Try to close the window to get confirmation message!", 120, 200, 20, LIGHTGRAY)
+
+    end_drawing()
+    # ----------------------------------------------------------------------------------
+
+# De-Initialization
+close_window()  # Close window and OpenGL context
diff --git a/examples/textures/textures_mouse_painting.py b/examples/textures/textures_mouse_painting.py
@@ -0,0 +1,196 @@
+"""
+
+raylib [texture] example - Mouse Painting
+
+"""
+from pyray import *
+from raylib.colors import *
+from raylib import (
+    KEY_RIGHT,
+    KEY_LEFT,
+    MOUSE_BUTTON_LEFT,
+    KEY_C,
+    GESTURE_DRAG,
+    MOUSE_BUTTON_RIGHT,
+    KEY_S
+)
+
+MAX_COLORS_COUNT = 23  # Number of colors available
+
+# Initialization
+screenWidth = 800
+screenHeight = 450
+
+init_window(screenWidth, screenHeight, "raylib [textures] example - mouse painting")
+
+# Colours to choose from
+colors = [RAYWHITE, YELLOW, GOLD, ORANGE, PINK, RED, MAROON, GREEN, LIME, DARKGREEN,
+          SKYBLUE, BLUE, DARKBLUE, PURPLE, VIOLET, DARKPURPLE, BEIGE, BROWN, DARKBROWN,
+          LIGHTGRAY, GRAY, DARKGRAY, BLACK]
+
+colorsRecs = []
+
+# Define colorsRecs data (for every rectangle)
+for i in range(MAX_COLORS_COUNT):
+    colorsRecs.append(Rectangle(10 + 30.0 * i + 2 * i, 10, 30, 30))
+
+colorSelected = 0
+colorSelectedPrev = colorSelected
+colorMouseHover = 0
+brushSize = 20.0
+mouseWasPressed = False
+
+btnSaveRec = Rectangle(750, 10, 40, 30)
+btnSaveMouseHover = False
+showSaveMessage = False
+saveMessageCounter = 0
+
+# Create a RenderTexture2D to use as a canvas
+target = load_render_texture(screenWidth, screenHeight)
+
+# Clear render texture before entering the game loop
+begin_texture_mode(target)
+clear_background(colors[0])
+end_texture_mode()
+
+set_target_fps(120)  # Set our game to run at 120 frames-per-second
+
+# Main game loop
+while not window_should_close():  # Detect window close button or ESC key
+    # Update
+    # ----------------------------------------------------------------------------------
+    mousePos = get_mouse_position()
+
+    # Move between colors with keys
+    if is_key_pressed(KEY_RIGHT):
+        colorSelected += 1
+    elif is_key_pressed(KEY_LEFT):
+        colorSelected -= 1
+
+    if colorSelected >= MAX_COLORS_COUNT:
+        colorSelected = MAX_COLORS_COUNT - 1
+    elif colorSelected < 0:
+        colorSelected = 0
+
+    # Choose color with mouse
+    for i in range(MAX_COLORS_COUNT):
+        if check_collision_point_rec(mousePos, colorsRecs[i]):
+            colorMouseHover = i
+            break
+        else:
+            colorMouseHover = -1
+
+    if colorMouseHover >= 0 and is_mouse_button_pressed(MOUSE_BUTTON_LEFT):
+        colorSelected = colorMouseHover
+        colorSelectedPrev = colorSelected
+
+    # Change brush size
+    brushSize += get_mouse_wheel_move() * 5
+    if brushSize < 2: brushSize = 2
+    if brushSize > 50: brushSize = 50
+
+    if is_key_pressed(KEY_C):
+        # Clear render texture to clear color
+        begin_texture_mode(target)
+        clear_background(colors[0])
+        end_texture_mode()
+
+    if is_mouse_button_pressed(MOUSE_BUTTON_LEFT) or get_gesture_detected() == 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
+        begin_texture_mode(target)
+        if mousePos.y > 50:
+            draw_circle(int(mousePos.x), int(mousePos.y), brushSize, colors[colorSelected])
+        end_texture_mode()
+    if is_mouse_button_down(MOUSE_BUTTON_RIGHT):
+
+        if not mouseWasPressed:
+            colorSelectedPrev = colorSelected
+            colorSelected = 0
+
+        mouseWasPressed = True
+
+        # Erase circle from render texture
+        begin_texture_mode(target)
+        if mousePos.y > 50: draw_circle(int(mousePos.x), int(mousePos.y), brushSize, colors[0])
+        end_texture_mode()
+
+    elif is_mouse_button_released(MOUSE_BUTTON_RIGHT) and mouseWasPressed:
+
+        colorSelected = colorSelectedPrev
+        mouseWasPressed = False
+
+    # Check mouse hover save button
+    if check_collision_point_rec(mousePos, btnSaveRec):
+        btnSaveMouseHover = True
+    else:
+        btnSaveMouseHover = False
+
+    # Image saving logic
+    # NOTE: Saving painted texture to a default named image
+    if (btnSaveMouseHover and is_mouse_button_released(MOUSE_BUTTON_LEFT)) or is_key_pressed(KEY_S):
+        image = load_image_from_texture(target.texture)
+        image_flip_vertical(image)
+        export_image(image, "my_amazing_texture_painting.png")
+        unload_image(image)
+        showSaveMessage = True
+
+    if showSaveMessage:
+        # On saving, show a full screen message for 2 seconds
+        saveMessageCounter += 1
+        if saveMessageCounter > 240:
+            showSaveMessage = False
+            saveMessageCounter = 0
+
+    # ----------------------------------------------------------------------------------
+
+    # Draw
+    # ----------------------------------------------------------------------------------
+    begin_drawing()
+    clear_background(RAYWHITE)
+
+    # NOTE: Render texture must be y-flipped due to default OpenGL coordinates (left-bottom)
+    draw_texture_rec(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 is_mouse_button_down(MOUSE_BUTTON_RIGHT):
+            draw_circle_lines(int(mousePos.x), int(mousePos.y), brushSize, GRAY)
+        else:
+            draw_circle(get_mouse_x(), get_mouse_y(), brushSize, colors[colorSelected])
+    # Draw top panel
+    draw_rectangle(0, 0, get_screen_width(), 50, RAYWHITE)
+    draw_line(0, 50, get_screen_width(), 50, LIGHTGRAY)
+
+    # Draw color selection rectangles
+    for i in range(MAX_COLORS_COUNT):
+        draw_rectangle_rec(colorsRecs[i], colors[i])
+    draw_rectangle_lines(10, 10, 30, 30, LIGHTGRAY)
+
+    if colorMouseHover >= 0: draw_rectangle_rec(colorsRecs[colorMouseHover], fade(WHITE, 0.6))
+
+    draw_rectangle_lines_ex(
+        Rectangle(colorsRecs[colorSelected].x - 2, colorsRecs[colorSelected].y - 2, colorsRecs[colorSelected].width + 4,
+                  colorsRecs[colorSelected].height + 4), 2, BLACK)
+
+    # Draw save image button
+    draw_rectangle_lines_ex(btnSaveRec, 2, RED if btnSaveMouseHover else BLACK)
+    draw_text("SAVE!", 755, 20, 10, RED if btnSaveMouseHover else BLACK)
+
+    if showSaveMessage:
+        draw_rectangle(0, 0, get_screen_width(), get_screen_height(), fade(RAYWHITE, 0.8))
+        draw_rectangle(0, 150, get_screen_width(), 80, BLACK)
+        draw_text("IMAGE SAVED:  my_amazing_texture_painting.png", 150, 180, 20, RAYWHITE)
+
+    end_drawing()
+
+    # ----------------------------------------------------------------------------------
+
+# De-Initialization
+# ----------------------------------------------------------------------------------
+unload_render_texture(target)  # Unload render texture
+
+close_window()  # Close window and OpenGL context
