79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
from pathlib import Path
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import moderngl_window as mglw
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import numpy as np
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class GameWindow(mglw.WindowConfig):
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gl_version = 4, 3
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window_size = 800, 600
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resource_dir = (Path(__file__).parent / "resources").resolve()
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buttons_held = [0, 0, 0]
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.program = self.load_program("render_to_screen.glsl")
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self.texture = self.ctx.texture(self.window_size, 4)
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buff = self.ctx.buffer(
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np.array(
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[
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-1.0,
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-1.0,
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0.0,
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1.0,
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-1.0,
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0.0,
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-1.0,
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1.0,
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0.0,
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1.0,
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-1.0,
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0.0,
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1.0,
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1.0,
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0.0,
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-1.0,
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1.0,
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0.0,
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]
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)
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.astype("f4")
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.tobytes()
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)
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self.vao = self.ctx.vertex_array(self.program, buff, "in_position")
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self.circle_brush_program = self.ctx.compute_shader(
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self.load_text("circle_brush.glsl")
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)
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def on_mouse_drag_event(self, x, y, dx, dy):
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# print("Mouse drag:", x, y, dx, dy)
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if self.buttons_held[1]:
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self.apply_brush(x, y, dx, dy)
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def on_mouse_press_event(self, x, y, button):
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self.buttons_held[button] = True
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if button == 1:
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self.apply_brush(x, y, 0, 0)
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def on_mouse_release_event(self, x, y, button):
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self.buttons_held[button] = False
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def apply_brush(self, x, y, dx, dy):
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self.circle_brush_program["texture0"] = 0
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self.circle_brush_program["start"].value = (x, y)
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self.circle_brush_program["stop"].value = (x + dx, y + dy)
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self.texture.use(0)
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self.circle_brush_program.run(*self.window_size)
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def on_render(self, time, frametime):
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self.program["texture0"] = 0
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self.texture.bind_to_image(0, read=False, write=True)
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self.vao.render()
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if __name__ == "__main__":
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GameWindow.run()
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