EnderTheCoder/OpenRA3
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v0.8.0: map roads/sidewalks, per-vertex depth bias, retail camera controls

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- ra3.map: capture the object RoadType; ra3.models pairs the map's
  Start/End road objects and drapes a flat textured ribbon along each
  segment (tessellated to the relief).
- Ground decals (roads/sidewalks) get a per-vertex screen-space depth
  offset (scene::vertex.bias) applied in the object shader and the
  software rasteriser, so they no longer z-fight or clip into the
  terrain at top-down angles.
- Tactical view aligned with retail (SAGE LookAtTranslator): middle-drag
  orbits yaw/pitch, a middle click resets angle/pitch/zoom, arrow keys
  pan, wheel zooms within the retail zoom range; WASD pan removed and
  left-drag no longer rotates.
- ui_event gains middle/right/released buttons; Vulkan + SDL map them.
- docs: roads, depth bias and camera controls.
This commit is contained in:
EnderTheCoder
2026-09-29 20:37:24 +08:00
parent 70f35d8382
commit 8047e80ed6
14 changed files with 229 additions and 33 deletions
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src/ui/ra3.ui.sdl.cppm
+18 -4
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@@ -101,6 +101,8 @@ export namespace ra3::ui {
out.dx = event.motion.xrel;
out.dy = event.motion.yrel;
out.left = (event.motion.state & SDL_BUTTON_LMASK) != 0U;
out.middle = (event.motion.state & SDL_BUTTON_MMASK) != 0U;
out.right = (event.motion.state & SDL_BUTTON_RMASK) != 0U;
return true;
case SDL_EVENT_MOUSE_BUTTON_DOWN:
out = {};
@@ -108,6 +110,18 @@ export namespace ra3::ui {
out.x = event.button.x;
out.y = event.button.y;
out.left = event.button.button == SDL_BUTTON_LEFT;
out.middle = event.button.button == SDL_BUTTON_MIDDLE;
out.right = event.button.button == SDL_BUTTON_RIGHT;
return true;
case SDL_EVENT_MOUSE_BUTTON_UP:
out = {};
out.type = ra3::render::ui_event_type::mouse_button;
out.x = event.button.x;
out.y = event.button.y;
out.released = true;
out.left = event.button.button == SDL_BUTTON_LEFT;
out.middle = event.button.button == SDL_BUTTON_MIDDLE;
out.right = event.button.button == SDL_BUTTON_RIGHT;
return true;
case SDL_EVENT_MOUSE_WHEEL:
out = {};
@@ -132,10 +146,10 @@ export namespace ra3::ui {
const bool *keys = SDL_GetKeyboardState(nullptr);
if (keys == nullptr) return false;
switch (key) {
case ra3::render::ui_key::up: return keys[SDL_SCANCODE_W] || keys[SDL_SCANCODE_UP];
case ra3::render::ui_key::down: return keys[SDL_SCANCODE_S] || keys[SDL_SCANCODE_DOWN];
case ra3::render::ui_key::left: return keys[SDL_SCANCODE_A] || keys[SDL_SCANCODE_LEFT];
case ra3::render::ui_key::right: return keys[SDL_SCANCODE_D] || keys[SDL_SCANCODE_RIGHT];
case ra3::render::ui_key::up: return keys[SDL_SCANCODE_UP];
case ra3::render::ui_key::down: return keys[SDL_SCANCODE_DOWN];
case ra3::render::ui_key::left: return keys[SDL_SCANCODE_LEFT];
case ra3::render::ui_key::right: return keys[SDL_SCANCODE_RIGHT];
default: return false;
}
}