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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <algorithm>
#include "CursorIcons.h"
#include "CommandColors.h"
#include "MouseHandler.h"
#include "GuiHandler.h"
#include "Sim/Units/CommandAI/Command.h"
#include "Game/Camera.h"
#include "Game/GlobalUnsynced.h"
#include "Rendering/Fonts/glFont.h"
#include "Rendering/UnitDrawer.h"
#include "Rendering/GL/myGL.h"
#include "Rendering/GL/RenderDataBuffer.hpp"
#include "Sim/Units/UnitDef.h"
#include "Sim/Units/UnitDefHandler.h"
CCursorIcons cursorIcons;
static constexpr float3 ICON_VERTS[] = {{0.0f, 0.0f, 0.0f}, {0.0f, 1.0f, 0.0f}, {1.0f, 1.0f, 0.0f}, {1.0f, 0.0f, 0.0f}};
static constexpr float2 ICON_TXCDS[] = {{0.0f, 0.0f }, {0.0f, 1.0f }, {1.0f, 1.0f }, {1.0f, 0.0f }};
void CCursorIcons::Sort()
{
// sort to minimize the number of texture bindings, and to
// avoid overdraw from multiple units with the same command
std::sort(icons.begin(), icons.end());
std::sort(texts.begin(), texts.end());
std::sort(buildIcons.begin(), buildIcons.end());
icons.erase(std::unique(icons.begin(), icons.end()), icons.end());
texts.erase(std::unique(texts.begin(), texts.end()), texts.end());
buildIcons.erase(std::unique(buildIcons.begin(), buildIcons.end()), buildIcons.end());
}
void CCursorIcons::SetCustomType(int cmdID, const std::string& cursor)
{
if (cursor.empty()) {
customTypes.erase(cmdID);
} else {
customTypes[cmdID] = cursor;
}
}
void CCursorIcons::Draw()
{
glAttribStatePtr->PushBits(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glAttribStatePtr->EnableBlendMask();
glAttribStatePtr->BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glAttribStatePtr->DisableDepthMask();
Sort();
DrawCursors();
DrawTexts();
DrawBuilds();
Clear();
glBindTexture(GL_TEXTURE_2D, 0);
glAttribStatePtr->PopBits();
}
void CCursorIcons::DrawCursors()
{
if (icons.empty() || !cmdColors.UseQueueIcons())
return;
GL::RenderDataBufferTC* buffer = GL::GetRenderBufferTC();
Shader::IProgramObject* shader = buffer->GetShader();
shader->Enable();
shader->SetUniformMatrix4x4<float>("u_movi_mat", false, CMatrix44f::Identity());
shader->SetUniformMatrix4x4<float>("u_proj_mat", false, CMatrix44f::ClipOrthoProj01(globalRendering->supportClipSpaceControl * 1.0f));
shader->SetUniform("u_alpha_test_ctrl", 0.01f, 1.0f, 0.0f, 0.0f); // test > 0.01
const SColor iconColor = {1.0f, 1.0f, 1.0f, cmdColors.QueueIconAlpha()};
const CMouseCursor* currentCursor = nullptr;
// force the first binding
int currentCommand = icons[0].cmd + 1;
for (const Icon& icon: icons) {
if (icon.cmd != currentCommand) {
if ((currentCursor = GetCursor(currentCommand = icon.cmd)) == nullptr)
continue;
buffer->Submit(GL_TRIANGLES);
currentCursor->BindTexture();
}
const float3 winCoors = camera->CalcWindowCoordinates(icon.pos);
const float2 winScale = {cmdColors.QueueIconScale(), 1.0f};
const float4& matParams = currentCursor->CalcFrameMatrixParams(winCoors, winScale);
CMatrix44f cursorMat;
cursorMat.Translate(matParams.x, matParams.y, 0.0f);
cursorMat.Scale({matParams.z, matParams.w, 1.0f});
buffer->SafeAppend({cursorMat * ICON_VERTS[0], ICON_TXCDS[0].x, ICON_TXCDS[0].y, iconColor}); // tl
buffer->SafeAppend({cursorMat * ICON_VERTS[1], ICON_TXCDS[1].x, ICON_TXCDS[1].y, iconColor}); // bl
buffer->SafeAppend({cursorMat * ICON_VERTS[2], ICON_TXCDS[2].x, ICON_TXCDS[2].y, iconColor}); // br
buffer->SafeAppend({cursorMat * ICON_VERTS[2], ICON_TXCDS[2].x, ICON_TXCDS[2].y, iconColor}); // br
buffer->SafeAppend({cursorMat * ICON_VERTS[3], ICON_TXCDS[3].x, ICON_TXCDS[3].y, iconColor}); // tr
buffer->SafeAppend({cursorMat * ICON_VERTS[0], ICON_TXCDS[0].x, ICON_TXCDS[0].y, iconColor}); // tl
}
buffer->Submit(GL_TRIANGLES);
shader->SetUniform("u_alpha_test_ctrl", 0.0f, 0.0f, 0.0f, 1.0f); // no test
shader->Disable();
}
void CCursorIcons::DrawTexts()
{
if (texts.empty())
return;
glAttribStatePtr->ViewPort(globalRendering->viewPosX, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
const unsigned int fontFlags = (FONT_OUTLINE * guihandler->GetOutlineFonts()) | FONT_SCALE | FONT_CENTER | FONT_TOP | FONT_NORM | FONT_BUFFERED;
const float fontScale = 1.0f;
const float yOffset = 50.0f * globalRendering->pixelY;
font->SetColors(); // default
for (const IconText& iconText: texts) {
const float3 winCoors = camera->CalcWindowCoordinates(iconText.pos);
if (winCoors.z > 1.0f)
continue;
const float x = (winCoors.x * globalRendering->pixelX);
const float y = (winCoors.y * globalRendering->pixelY) + yOffset;
font->glPrint(x, y, fontScale, fontFlags, iconText.text);
}
font->DrawBufferedGL4();
}
void CCursorIcons::DrawBuilds()
{
glAttribStatePtr->ViewPort(globalRendering->viewPosX, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
glAttribStatePtr->EnableDepthTest();
if (!buildIcons.empty()) {
const auto setupStateFunc = [&](const BuildIcon& bi, const S3DModel* mdl) {
unitDrawer->SetupAlphaDrawing(false, true);
unitDrawer->PushModelRenderState(mdl);
unitDrawer->SetTeamColour(bi.team, float2(0.25f, 1.0f));
return (unitDrawer->GetDrawerState(DRAWER_STATE_SEL));
};
const auto resetStateFunc = [&](const BuildIcon&, const S3DModel* mdl) {
unitDrawer->PopModelRenderState(mdl);
unitDrawer->ResetAlphaDrawing(false);
};
const auto nextModelFunc = [&](const BuildIcon& bi, const S3DModel* mdl) -> const S3DModel* {
const UnitDef* def = unitDefHandler->GetUnitDefByID(-bi.cmd);
const S3DModel* nxt = def->LoadModel();
if (mdl == nullptr || mdl == nxt)
return nxt;
// icons are already sorted by type and team
unitDrawer->PopModelRenderState(mdl);
unitDrawer->PushModelRenderState(nxt);
unitDrawer->SetTeamColour(bi.team, float2(0.25f, 1.0f));
return nxt;
};
const auto drawModelFunc = [&](const BuildIcon& bi, const S3DModel* mdl, const IUnitDrawerState* uds) {
unitDrawer->DrawStaticModelRaw(mdl, uds, bi.pos, bi.facing);
};
unitDrawer->DrawStaticModelBatch<BuildIcon>(buildIcons, setupStateFunc, resetStateFunc, nextModelFunc, drawModelFunc);
}
glAttribStatePtr->DisableDepthTest();
}
const CMouseCursor* CCursorIcons::GetCursor(int cmd) const
{
switch (cmd) {
case CMD_WAIT: return (mouse->FindCursor("Wait" )); break;
case CMD_TIMEWAIT: return (mouse->FindCursor("TimeWait" )); break;
case CMD_SQUADWAIT: return (mouse->FindCursor("SquadWait" )); break;
case CMD_DEATHWAIT: return (mouse->FindCursor("Wait" )); break; // there is a "DeathWait" cursor, but use CMD_WAIT's to prevent cheating
case CMD_GATHERWAIT: return (mouse->FindCursor("GatherWait" )); break;
case CMD_MOVE: return (mouse->FindCursor("Move" )); break;
case CMD_PATROL: return (mouse->FindCursor("Patrol" )); break;
case CMD_FIGHT: return (mouse->FindCursor("Fight" )); break;
case CMD_ATTACK: return (mouse->FindCursor("Attack" )); break;
case CMD_AREA_ATTACK: return (mouse->FindCursor("Area attack" )); break;
case CMD_GUARD: return (mouse->FindCursor("Guard" )); break;
case CMD_REPAIR: return (mouse->FindCursor("Repair" )); break;
case CMD_LOAD_ONTO: return (mouse->FindCursor("Load units" )); break;
case CMD_LOAD_UNITS: return (mouse->FindCursor("Load units" )); break;
case CMD_UNLOAD_UNITS: return (mouse->FindCursor("Unload units")); break;
case CMD_UNLOAD_UNIT: return (mouse->FindCursor("Unload units")); break;
case CMD_RECLAIM: return (mouse->FindCursor("Reclaim" )); break;
case CMD_MANUALFIRE: return (mouse->FindCursor("ManualFire" )); break;
case CMD_RESURRECT: return (mouse->FindCursor("Resurrect" )); break;
case CMD_CAPTURE: return (mouse->FindCursor("Capture" )); break;
case CMD_SELFD: return (mouse->FindCursor("SelfD" )); break;
case CMD_RESTORE: return (mouse->FindCursor("Restore" )); break;
#if 0
case CMD_STOP:
case CMD_GROUPSELECT:
case CMD_GROUPADD:
case CMD_GROUPCLEAR:
case CMD_FIRE_STATE:
case CMD_MOVE_STATE:
case CMD_SETBASE:
case CMD_INTERNAL:
case CMD_ONOFF:
case CMD_CLOAK:
case CMD_STOCKPILE:
case CMD_REPEAT:
case CMD_TRAJECTORY:
case CMD_AUTOREPAIRLEVEL:
#endif
default: break;
}
const auto it = customTypes.find(cmd);
// look for the cursor of this name assigned in MouseHandler
if (it != customTypes.end())
return (mouse->FindCursor(it->second));
return nullptr;
}
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