From c7d84246b4c7b680fc6bf81b3fdfcf33f230909a Mon Sep 17 00:00:00 2001 From: LordBaryhobal Date: Fri, 28 Jun 2024 14:20:37 +0200 Subject: [PATCH] added basic map rendering --- main.py | 10 +++ src/__init__.py | 0 src/editor.py | 176 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 186 insertions(+) create mode 100644 main.py create mode 100644 src/__init__.py create mode 100644 src/editor.py diff --git a/main.py b/main.py new file mode 100644 index 0000000..77c8064 --- /dev/null +++ b/main.py @@ -0,0 +1,10 @@ +from src.editor import Editor + + +def main(): + editor = Editor() + editor.mainloop() + + +if __name__ == '__main__': + main() diff --git a/src/__init__.py b/src/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/src/editor.py b/src/editor.py new file mode 100644 index 0000000..88a62a7 --- /dev/null +++ b/src/editor.py @@ -0,0 +1,176 @@ +from math import floor +import os +from typing import Optional + +import pygame + + +class Editor: + WIDTH = 800 + HEIGHT = 600 + MAP_SIZE = 1024 + MAPS_DIR = "/tmp/lycacraft_maps" + MIN_ZOOM = 0.25 + MAX_ZOOM = 4 + + def __init__(self): + self.width: int = self.WIDTH + self.height: int = self.HEIGHT + self.win: pygame.Surface = pygame.display.set_mode([self.width, self.height], pygame.RESIZABLE) + self.center: list[int] = [0, 0] + self.zoom: float = 1 + self.map_size: int = self.MAP_SIZE + self.running: bool = False + self.cache: dict[float, dict[tuple[int, int], pygame.Surface]] = {} + self.load_maps() + self.clock: pygame.time.Clock = pygame.time.Clock() + self.visible_maps_count: int = 0 + self.drag_pos: Optional[tuple[int, int]] = None + + def load_maps(self) -> None: + cache = {} + for path in os.listdir(self.MAPS_DIR): + fullpath = os.path.join(self.MAPS_DIR, path) + name, x, y = path.split(".")[0].split("_") + cache[(int(x), int(y))] = pygame.image.load(fullpath) + self.cache = { + self.zoom: cache + } + + def resize_maps(self) -> None: + if self.zoom in self.cache: + return + + cache = {} + for pos, img in self.cache[1].items(): + cache[pos] = pygame.transform.scale_by(img, self.zoom) + + self.cache[self.zoom] = cache + + def get_map(self, x: int, y: int) -> Optional[pygame.Surface]: + cache = self.cache.get(self.zoom, {}) + pos = (x, y) + if pos not in cache: + if pos not in self.cache[1]: + return None + + img = self.cache[1][pos] + cache[pos] = pygame.transform.scale_by(img, self.zoom) + + return cache[pos] + + def mainloop(self) -> None: + self.running = True + while self.running: + pygame.display.set_caption(f"Lycacraft Map Editor - {self.clock.get_fps():.2f}fps - {self.visible_maps_count} maps rendered") + self.process_events() + self.render() + self.clock.tick(30) + + def process_events(self) -> None: + events = pygame.event.get() + + for event in events: + if event.type == pygame.QUIT: + self.running = False + elif event.type == pygame.WINDOWRESIZED: + self.width = event.x + self.height = event.y + elif event.type == pygame.KEYDOWN: + if event.key == pygame.K_ESCAPE: + self.running = False + elif event.key == pygame.K_PAGEUP: + self.zoom_in() + elif event.key == pygame.K_PAGEDOWN: + self.zoom_out() + elif event.type == pygame.MOUSEBUTTONDOWN: + if event.button == 2: + self.drag_pos = event.pos + elif event.type == pygame.MOUSEBUTTONUP: + if event.button == 2: + self.drag_pos = None + + keys = pygame.key.get_pressed() + if keys[pygame.K_LEFT]: + self.center[0] -= 4 / self.zoom + if keys[pygame.K_RIGHT]: + self.center[0] += 4 / self.zoom + if keys[pygame.K_UP]: + self.center[1] -= 4 / self.zoom + if keys[pygame.K_DOWN]: + self.center[1] += 4 / self.zoom + + mbtns = pygame.mouse.get_pressed() + mpos = pygame.mouse.get_pos() + if mbtns[1]: + dx = mpos[0] - self.drag_pos[0] + dy = mpos[1] - self.drag_pos[1] + self.center[0] -= dx / self.zoom + self.center[1] -= dy / self.zoom + self.drag_pos = mpos + + def render(self) -> None: + self.win.fill((0, 0, 0)) + off_x = self.center[0] % self.MAP_SIZE + off_y = self.center[1] % self.MAP_SIZE + + w2 = self.width / 2 + h2 = self.height / 2 + + x0 = floor(self.center[0] - w2 / self.zoom) + y0 = floor(self.center[1] - h2 / self.zoom) + x1 = floor(self.center[0] + w2 / self.zoom) + y1 = floor(self.center[1] + h2 / self.zoom) + + mx0 = floor(x0 / self.MAP_SIZE) + my0 = floor(y0 / self.MAP_SIZE) + mx1 = floor(x1 / self.MAP_SIZE) + my1 = floor(y1 / self.MAP_SIZE) + + h_maps = mx1 - mx0 + 1 + v_maps = my1 - my0 + 1 + cx = floor(self.center[0] / self.MAP_SIZE) + cy = floor(self.center[1] / self.MAP_SIZE) + self.visible_maps_count = h_maps * v_maps + ox = w2 + (mx0 - cx) * self.map_size - off_x * self.zoom + oy = h2 + (my0 - cy) * self.map_size - off_y * self.zoom + # cache = self.cache[self.zoom] + + for y in range(v_maps): + for x in range(h_maps): + # map_pos = (mx0 + x, my0 + y) + map_image = self.get_map(mx0 + x, my0 + y) + # if map_pos not in cache: + if map_image is None: + continue + + # map_image = cache[map_pos] + + sx = ox + x * self.map_size + sy = oy + y * self.map_size + ex = sx + self.map_size + ey = sy + self.map_size + sx2, ex2 = min(self.width, max(0, sx)), min(self.width, max(0, ex)) + sy2, ey2 = min(self.height, max(0, sy)), min(self.height, max(0, ey)) + """self.win.blit(map_image, [ + ox + x * self.map_size, + oy + y * self.map_size, + ])""" + self.win.blit(map_image, [sx2, sy2], [sx2 - sx, sy2 - sy, ex2 - sx2, ey2 - sy2]) + + for y in range(v_maps): + for x in range(h_maps): + pygame.draw.rect(self.win, (255, 0, 0), [ox + x * self.map_size, oy + y * self.map_size, self.map_size, self.map_size], 1) + + pygame.display.flip() + + def set_zoom(self, zoom: float) -> None: + self.zoom = max(self.MIN_ZOOM, min(self.MAX_ZOOM, zoom)) + self.map_size = self.MAP_SIZE * self.zoom + # self.resize_maps() + + def zoom_in(self) -> None: + self.set_zoom(self.zoom * 2) + + def zoom_out(self) -> None: + self.set_zoom(self.zoom / 2)