110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
#include <math.h>
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#include "const.h"
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#include "movement.h"
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#include "system/mouse_io.h"
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#include "system/pc_stuff.h"
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void captureAndLimitMousePosition(
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struct RabbitPosition *pos,
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struct MouseStatus *mouseStatus
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) {
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pos->oldMouseDotPosition[0] = pos->mouseDotPosition[0];
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pos->oldMouseDotPosition[1] = pos->mouseDotPosition[1];
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pos->mouseDotPosition[0] = mouseStatus->xPosition;
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pos->mouseDotPosition[1] = mouseStatus->yPosition;
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if (pos->mouseDotPosition[0] < MOUSE_LIMIT_LEFT) pos->mouseDotPosition[0] = MOUSE_LIMIT_LEFT;
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if (pos->mouseDotPosition[0] >= MOUSE_LIMIT_RIGHT) pos->mouseDotPosition[0] = MOUSE_LIMIT_RIGHT;
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if (pos->mouseDotPosition[1] < MOUSE_LIMIT_TOP) pos->mouseDotPosition[1] = MOUSE_LIMIT_TOP;
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if (pos->mouseDotPosition[1] >= MOUSE_LIMIT_BOTTOM) pos->mouseDotPosition[1] = MOUSE_LIMIT_BOTTOM;
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}
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void calculateTargetAngle(
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struct RabbitPosition *pos,
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struct MouseStatus *mouseStatus
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) {
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float distanceX, distanceY;
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float angle;
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// Position the cursor
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distanceX = pos->mouseDotPosition[0] - pos->rabbitPosition[0];
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distanceY = pos->mouseDotPosition[1] - pos->rabbitPosition[1];
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angle = atan2(distanceY, distanceX) * RAD2DEG + 90;
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if (angle < 0) angle += 360;
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distanceX = sin(angle * DEG2RAD) * MOUSE_DISTANCE;
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distanceY = -cos(angle * DEG2RAD) * MOUSE_DISTANCE;
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pos->oldMousePosition[0] = pos->mousePosition[0];
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pos->oldMousePosition[1] = pos->mousePosition[1];
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pos->mousePosition[0] = pos->rabbitPosition[0] + distanceX;
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pos->mousePosition[1] = pos->rabbitPosition[1] + distanceY;
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// get the shot angle
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distanceX = pos->mouseDotPosition[0] - pos->rabbitPosition[0];
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distanceY = pos->mouseDotPosition[1] - pos->rabbitPosition[1];
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angle = atan2(distanceY, distanceX) * RAD2DEG + 90;
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if (angle < 0) angle += 360;
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pos->mouseAngle = angle;
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}
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void handleRabbitMovement(
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struct RabbitPosition *pos,
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struct KeyboardKeydownState *keyboardKeydownState
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) {
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int i;
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if (keyboardKeydownState->KEY_W) {
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pos->rabbitVelocity[1] -= RABBIT_MOTION_ACCELERATION;
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if (pos->rabbitVelocity[1] < -RABBIT_MOTION_MAX_SPEED) {
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pos->rabbitVelocity[1] = -RABBIT_MOTION_MAX_SPEED;
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}
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}
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if (keyboardKeydownState->KEY_S) {
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pos->rabbitVelocity[1] += RABBIT_MOTION_ACCELERATION;
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if (pos->rabbitVelocity[1] > RABBIT_MOTION_MAX_SPEED) {
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pos->rabbitVelocity[1] = RABBIT_MOTION_MAX_SPEED;
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}
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}
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if (keyboardKeydownState->KEY_A) {
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pos->rabbitVelocity[0] -= RABBIT_MOTION_ACCELERATION;
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if (pos->rabbitVelocity[0] < -RABBIT_MOTION_MAX_SPEED) {
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pos->rabbitVelocity[0] = -RABBIT_MOTION_MAX_SPEED;
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}
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}
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if (keyboardKeydownState->KEY_D) {
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pos->rabbitVelocity[0] += RABBIT_MOTION_ACCELERATION;
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if (pos->rabbitVelocity[0] > RABBIT_MOTION_MAX_SPEED) {
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pos->rabbitVelocity[0] = RABBIT_MOTION_MAX_SPEED;
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}
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}
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for (i = 0; i < 2; ++i) {
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pos->oldRabbitPosition[i] = pos->rabbitPosition[i];
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pos->rabbitPosition[i] += (pos->rabbitVelocity[i] / RABBIT_MOTION_VELOCITY_DECAY);
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if (pos->rabbitPosition[i] < pos->rabbitLimits[0][i]) {
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pos->rabbitPosition[i] = pos->rabbitLimits[0][i];
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}
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if (pos->rabbitPosition[i] >= pos->rabbitLimits[1][i]) {
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pos->rabbitPosition[i] = pos->rabbitLimits[1][i];
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}
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if (pos->rabbitVelocity[i] < 0) {
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pos->rabbitVelocity[i] += RABBIT_MOTION_DRAG;
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if (pos->rabbitVelocity[i] > 0) pos->rabbitVelocity[i] = 0;
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}
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if (pos->rabbitVelocity[i] > 0) {
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pos->rabbitVelocity[i] -= RABBIT_MOTION_DRAG;
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if (pos->rabbitVelocity[i] < 0) pos->rabbitVelocity[i] = 0;
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}
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}
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}
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