forked from 0ad/0ad
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#include "precompiled.h"
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#include "InputProcessor.h"
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#include "ps/Game.h"
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#include "graphics/Camera.h"
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#include <assert.h>
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bool InputProcessor::ProcessInput(GameLoopState* state)
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{
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if (! g_Game)
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return false;
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CCamera* camera = g_Game->GetView()->GetCamera();
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CVector3D leftwards = camera->m_Orientation.GetLeft();
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// Calculate a vector pointing forwards, parallel to the ground
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CVector3D forwards = camera->m_Orientation.GetIn();
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forwards.Y = 0.0f;
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if (forwards.GetLength() < 0.001f) // be careful if the camera is looking straight down
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forwards = CVector3D(1.f, 0.f, 0.f);
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else
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forwards.Normalize();
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float l;
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l = forwards.GetLength();
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assert(fabsf(l - 1.f) < 0.0001f);
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l = leftwards.GetLength();
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assert(fabsf(l - 1.f) < 0.0001f);
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bool moved = false;
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if (state->input.scrollSpeed[0] != 0.0f)
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{
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camera->m_Orientation.Translate(forwards * (state->input.scrollSpeed[0] * state->frameLength));
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moved = true;
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}
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if (state->input.scrollSpeed[1] != 0.0f)
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{
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camera->m_Orientation.Translate(forwards * (-state->input.scrollSpeed[1] * state->frameLength));
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moved = true;
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}
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if (state->input.scrollSpeed[2] != 0.0f)
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{
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camera->m_Orientation.Translate(leftwards * (state->input.scrollSpeed[2] * state->frameLength));
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moved = true;
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}
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if (state->input.scrollSpeed[3] != 0.0f)
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{
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camera->m_Orientation.Translate(leftwards * (-state->input.scrollSpeed[3] * state->frameLength));
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moved = true;
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}
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return moved;
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}
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